Last time we spoke about the Allied invasion of Borneo. The Allies initiated the invasion of Borneo, commanded by General Morshead. The operation, known as Operation Oboe, aimed to reclaim vital oilfields from the demoralized Japanese forces. Despite their fierce resistance, American troops swiftly captured strategic locations on the island. The Japanese, already struggling with low morale and supply shortages, were unable to mount an effective defense. Amid the intense fighting, Air Commodore...
Last time we spoke about the Allied invasion of Borneo. The Allies initiated the invasion of Borneo, commanded by General Morshead. The operation, known as Operation Oboe, aimed to reclaim vital oilfields from the demoralized Japanese forces. Despite their fierce resistance, American troops swiftly captured strategic locations on the island. The Japanese, already struggling with low morale and supply shortages, were unable to mount an effective defense. Amid the intense fighting, Air Commodore Cobby’s forces conducted air assaults on key targets, weakening Japanese positions. As American troops landed on Tarakan Island on May 1, they faced heavy fire but managed to gain significant territory by nightfall. By early May, despite the loss of ground, Japanese forces continued to resist fiercely. This victory in Borneo marked a turning point in the Pacific campaign, ultimately foreshadowing the decline of Japanese influence in the region and paving the way for further Allied advances.
This episode is the Second Okinawa Offensive
Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945.
Last we left off, by April 24, General Ushijima's 32nd Army had chosen to abandon the first line of Shuri defenses, with the exception of the extreme right in the Item Pocket area. However, the weary Japanese troops merely withdrew to the next line of prepared positions within the Shuri defense zone, ready to make the American invaders pay for every inch of territory gained. Observing this, General Hodge promptly ordered the 7th, 27th, and 96th Divisions to regroup and enhance their positions through aggressive maneuvers, seizing strategic ground in front of them and pushing back enemy outposts. His forces were also heavily depleted and exhausted, prompting him to plan a final offensive on April 26 before rotating in the relatively fresh 77th Division and the 1st Marine Division for support. Unbeknownst to him, the 62nd Division had suffered significant losses, nearly losing half of its original strength on the left flank. In response, Ushijima decided to move the 24th Division and the 44th Independent Mixed Brigade north to reinforce the Shuri defense zone, establishing a fallback position for retreating forces.This shift also meant that the southern areas were defended only by a hastily assembled Shimajiri Security Force of 5,500 men, drawn from rear-area supply units tasked with delaying any American advances from the south until the main infantry units could return.
The question of a second landing in southern Okinawa was considered by 10th Army most seriously before April 22. General Bruce, commander of the 77th Division, knew that his division would be committed in the Okinawa fighting as soon as lejima was secured. At Leyte the amphibious landing of the 77th Division behind the Japanese line at Ormoc had been spectacularly successful. General Bruce and his staff wished to repeat the move on Okinawa and urged it on the 10th Army command even before the division sailed from Leyte. As the Iejima fighting drew to a close, General Bruce pressed his recommendation to land his division on the southeast coast of Okinawa on the beaches just north of Minatoga. He believed that it would be necessary to effect a juncture with American forces then north of Shuri within ten days if the venture was to be successful. His plan was either to drive inland on Iwa, a road and communications center at the southern end of the island, or to push north against Yonabaru. General Buckner rejected the idea. His assistant chief of staff, G-4, stated that he could supply food but not ammunition for such a project at that time. The Minatoga beaches had been thoroughly considered in the planning for the initial landings and had been rejected because of the impossibility of furnishing adequate logistical support for even one division. The reefs were dangerous, the beaches inadequate, and the area exposed to strong enemy attack. Although beach outlets existed, they were commanded both by the escarpment to the west and by the plateau of the Chinen Peninsula. The 10th Army intelligence officer reported that the Japanese still had their reserves stationed in the south. Both the 24th Division and the 44th Independent Mixed Brigade were still in the area and could move quickly to oppose any landings. Artillery positions on the heights overlooking the beaches were fully manned. The 77th Division would be landing so far south that it would not have the support of the troops engaged to the north or of 24th Corps artillery. The steep terrain near the beaches favored the defense, and any unit there would be isolated. It might be more like Anzio than Leyte, Buckner suggested. Besides that, the three divisions on the line needed to be relieved, and Buckner's three unused divisions would all be needed there.
On April 25, the main focus of action shifted to the Item Pocket, where Captain Bernard Ryan’s Company F of the 165th Regiment surged forward following a 20-minute artillery bombardment to seize the summit of Ryan Ridge. Captain Ryan looked out over the rugged expanse of Ryan Ridge, where the Japanese forces entrenched at the top presented a formidable challenge. They controlled the crucial territory between Ryan and Fox Ridges, creating a dangerous stronghold that threatened his position. For Ryan, the solution lay in artillery fire. He understood that since the supporting fire would fall perpendicular to his attack route, the risk of overshooting or undershooting would be minimal, just a lateral deviation of fifteen yards. With this confidence, he ordered a twenty-minute artillery barrage on the slopes of the ridge.As dawn broke on the morning of the 25th, Ryan gathered his men from Company F. He stressed the importance of a swift ground assault to capitalize on the artillery support. However, this was no easy task; his company was tired, undermanned, and severely low on food and ammunition. Despite these challenges, the two assault platoons sprang into action the moment the first shells began to fall. They charged forward, propelled by the roar of mortars, machine guns, and antitank guns that kept enemy forces at bay.But as they sprinted towards the ridge, the enemy struck back fiercely. Enemy fire and natural obstacles thinned their ranks, yet thirty-one determined soldiers reached the summit. They found themselves standing on a jagged ridge, strewn with rocks and scarred vegetation, a treacherous landscape that added to their struggle. Just as the artillery fire began to fade, the Japanese emerged from their hidden positions: “spider holes,” pillboxes, and tunnels. The Americans stood ready, and for the next twenty minutes, a brutal fight erupted. They engaged in fierce hand-to-hand combat, reminiscent of earlier battles on Item Pocket ridge tops. The outcome was grim; thirty-five Japanese soldiers fell, and many more fled in panic. However, the Americans also paid a price, five were killed, and two wounded. Now, the real challenge began: consolidating their hard-won position. Captain Ryan knew that previous units had ascended these ridges only to be pushed back by the enemy. By late afternoon, only twenty-four effective soldiers remained atop the ridge, with each man averaging a mere six rounds of rifle ammunition. Medical supplies had run dry, and all the aid men had become casualties. Communication was severed, and Ryan could sense the tightening noose as the Japanese regrouped for an assault. Understanding the gravitas of their situation, Ryan devised a bold plan. He arranged for Company I to maneuver around to his right flank, hoping to replicate the success of the morning. At 4:05 PM, just fifteen minutes after artillery support resumed, Ryan and his company made their ascent once more, enduring five additional casualties along the route. Unfortunately, Company I struggled to reach the top, cut off by heavy enemy fire on the slopes. In a moment of desperation, Ryan and two men ventured out into the dark to seek reinforcement, a risky endeavor that could easily end in disaster. Although Company I was still bogged down, Captain Betts from Company K recognized the urgency of the situation and quickly mobilized his men. By midnight, all of Company K had reached the ridge, bolstering Ryan's weary but determined troops. As these events unfolded at Ryan Ridge, other companies from the 165th were locked in a brutal struggle at Gusukuma, located southwest of the ridge. Fierce fighting erupted as soldiers moved from wall to wall, tree to tree, fighting for every inch in the rubble of Gusukuma. Company A faced an unrelenting barrage, enduring fire from eight machine guns and a 47-mm antitank gun, much of which came from the yet-untamed eastern slope of Ryan Ridge. Amidst this chaos, Private First Class Richard King from Company A became a beacon of valor. In a remarkable display of courage, he climbed a tree to eliminate a Japanese soldier perched above and, from his vantage point, went on to kill ten more enemies before night fell. The day had been marked by sacrifice and bravery, with Captain Ryan and his men fighting heroically for every inch of ground gained on Ryan Ridge. As the sun set, they prepared for the challenges that lay ahead, their resolve unwavering amid the turmoil of war.
Meanwhile, other companies of the 165th Regiment engaged fiercely in assaults against Gusukuma, gradually gaining ground at a high cost to both sides. At the same time, the 96th Division consolidated its position in front of Maeda and Kochi, while Colonel Pachler’s 1st Battalion advanced 600 yards with minimal resistance to occupy the slope of Horseshoe Ridge. The following day, April 26, the general offensive resumed, with the bulk of the 165th Regiment continuing its costly advance into the heart of the Item Pocket, successfully clearing Gusukuma as Company F pushed along the crest of Ryan Ridge toward the northern end of the Machinato airstrip. To the east, the 105th Regiment advanced to the southern edge of Nakama, while the 106th Regiment extended the front line toward Yafusu. In the center, Colonel Halloran’s 2nd Battalion launched an assault on the Maeda Escarpment but was quickly repulsed by a brutal barrage of Japanese fire across the front. However, elements of the 383rd Regiment managed to reach the crests of Hills 150 and 152, securing a strategic position to inflict heavy casualties on the enemy below, as tanks and armored flamethrowers moved to the outskirts of Maeda to wreak havoc. At 4 pm in the afternoon General Ushijima issued a terse order: “The enemy with troops following tanks has been advancing into the southern and eastern sectors of Maeda since about 1 pm. The 62d Division will dispatch local units . . . attack the enemy advancing in the Maeda sector and expect to repulse him decisively.” At the same time, adjacent 24th Division units were ordered to cooperate in this effort regardless of division boundary. Two hours later the Japanese commanding general issued another order: "The army will crush the enemy which has broken through near Maeda. The 24th Division will put its main strength northeast of Shuri this evening."
Lastly, Pachler’s 1st Battalion attempted to advance along the western flank of Kochi Ridge, while the 2nd Battalion moved along the eastern flank. Both battalions were immediately repelled by a barrage of enemy fire. The following day, efforts to establish physical contact between the two units proved costly and futile. Meanwhile, Halloran’s 1st Battalion, along with elements of the 383rd Regiment, maneuvered through the saddle between Hills 150 and 152, receiving support from tanks and armored flamethrowers. Although tanks and infantry managed to penetrate to the southern edge of Maeda, the advance was halted by intense enemy fire. Atop the escarpment, an all-out effort was made to reduce a heavily fortified underground pillbox that separated Companies F and G; however, this attempt also failed. Concurrently, as the 105th Regiment organized a defensive line at Nakama, Colonel Stebbins’ 2nd Battalion engaged in fierce combat around Yafusu in an effort to straighten their front lines. Meanwhile, the disorganized 165th Regiment continued clearing the Item Pocket, which was finally declared secure, although many Japanese troops remained hidden in deep caves and tunnels. Due to this disorganization and the sluggish progress in securing the pocket, General Griner ultimately decided to relieve Colonel Kelley of his command of the 165th. The regiment would then spend the remaining days of the month patrolling the Kuwan Inlet south of Machinato airfield. Griner’s overextended and battered division would not undertake any further offensive actions until being relieved at the end of April. At sea, a Japanese suicide boat successfully dropped a depth charge near the destroyer Hutchins, which had to withdraw due to heavy damage. Additionally, Japanese aircraft reemerged during the night, with a kamikaze crashing into and sinking the ammunition ship Canada Victory, while other planes damaged two destroyers and a transport ship. Random factoid by the way, the SS Canada Victory was among the 531 Victory ships constructed during World War II as part of the Emergency Shipbuilding program. Launched by the Oregon Shipbuilding Corporation on January 12, 1944, she was completed on February 28, 1944. The ship was designated VC2-S-AP3 by the United States Maritime Commission, with hull number 93 (1009). Following her completion, the Maritime Commission transferred her to the civilian operator Alaska SS Company.
This was merely a prelude to Admiral Ugaki’s fourth mass Kikisui attack, which launched 115 kamikazes on April 28. While interceptor fighters destroyed most of these aircraft, seven managed to slip past the combat air patrol and crashed into destroyers Daly and Twiggs, the destroyer minesweeper Butler, the evacuation transport Pickney, and the hospital ship Comfort. On the ground, Halloran’s Company K attempted to weaken resistance at the escarpment by moving through the 27th Division zone to the west and advancing southeast towards the Apartment House barracks, where they were met with heavy losses and forced to retreat. Meanwhile, on the western side of Kochi Ridge, Pachler’s 3rd Battalion relieved the 1st Battalion and launched an attack into the gap between the ridge and Zebra Hill. They successfully led Company K through Kochi and into the cut, while Company L moved southward along the western slope. However, upon reaching the cut, both companies were met with a barrage of machine-gun fire, ultimately compelling them to withdraw. To the east, the 32nd Regiment faced delays in initiating their attack due to setbacks around Kochi, despite the successful raids by armored flamethrowers into the heart of Kuhazu. The following day, more kamikaze assaults inflicted additional damage on destroyers Hazelwood and Haggard. By the end of April, American pilots reported 1,216 air-to-air kills, while Japanese sources acknowledged losses exceeding 1,000 aircraft, including 820 destroyed in the first four Kikisui attacks. This left Admiral Ugaki with approximately 370 operational aircraft for future operations. It is also important to note that the Japanese pilots inflicted significant casualties, resulting in Admiral Spruance’s 5th Fleet suffering the loss of 1,853 sailors killed or missing and 2,650 wounded, averaging one and a half ships hit per day.
As April expired, a concerned Nimitz personally visited Okinawa, where Buckner reminded Nimitz that as a land battle, 10th Army operations fell under Army command. “Yes,” Nimitz replied, “but ground though it may be, I’m losing a ship and a half a day. So if this line isn’t moving within five days, we’ll get someone here to move it so we can all get out from under these stupid air attacks.” Nevertheless, by May, 10th Army had thoroughly bogged down into costly, unimaginative frontal assaults against southern Okinawa’s heavily fortified Shuri line. Numerous 10th Army generals urged Buckner to “play the amphib card” and land the reserve 2nd Marine Division in southeastern Okinawa, behind Japanese lines. Buckner ultimately refused, claiming insufficient logistics. Nimitz concurred with Buckner, at least publicly, but few others did. Spruance, Turner, and Mitscher were themselves growing increasingly bitter at 10th Army’s lack of progress, as well as USAAF lethargy constructing fighter airfields ashore that could finally relieve the battered carriers. Touring the developing Okinawa airstrips, a 5th Fleet staff officer discovered that General “Hap” Arnold had secretly been writing Okinawa’s lead USAAF engineer, urging him to divert assigned fighter strip resources into building B-29 bomber airfields instead. An incredulous Spruance went ashore to investigate and discovered the allegation was true. Stunned, Spruance “turned that situation around in about 15 minutes.”
On land, following an unsuccessful tank assault toward Onaga, the 32nd Regiment intensified pressure on enemy positions to the southeast to support operations against Kochi Ridge. However, the 17th Regiment's attacks were still stalled. Meanwhile, after fending off two strong counterattacks that resulted in approximately 265 Japanese casualties, the 383rd Regiment advanced to capture the crest of Hill 318 in fierce close combat. This critical victory finally enabled American forces to direct fire onto Shuri itself. On April 29, the 307th Regiment took over the Maeda Escarpment section of the line from the 381st, and the next morning, the 306th Regiment relieved the 383rd on the left flank of the 96th Division. Simultaneously, the 1st Marines relieved the 165th on the west coast, while the 5th Marines took over the line held by the 105th and 106th Regiments on May 1. Despite ongoing efforts, attacks against Kochi Ridge on April 30 once again failed. However, the 1st Battalion of the 32nd Regiment successfully established Company C on “Chimney Crag” and Company A on the “Roulette Wheel,” located on the ridge southwest of Kuhazu. During the night, large numbers of Japanese infiltrated behind these companies, disrupting the planned relief of the 32nd by the 184th Regiment. This relief, intended to be completed before dawn on May 1, was delayed until late in the afternoon. Despite this setback, Colonel Green’s Company L managed to reach Gaja Ridge, positioned just in front of Conical Hill during the night. Concurrently, Colonel Hamilton’s Company A attempted to mount ladders at the eastern end of the Maeda Escarpment but was quickly repelled by fierce defenders. On the western front, however, Company B successfully captured the edge of the escarpment using cargo nets by nightfall, although they were ultimately forced to withdraw due to heavy counterattacks later that night.
Additionally, Hamilton’s 3rd Battalion moved behind the escarpment to Nakama village, launching an attack eastward toward the Apartment House barracks area. Meanwhile, on the west coast, the 1st Marines had been attempting to advance south for two days but were repelled each time, suffering significant casualties. However, they did succeed in clearing an enemy pocket at Miyagusuku. On May 2, the 5th Marines finally joined the offensive but encountered stubborn resistance, while the 1st Marines continued to struggle to cross the draw south of Nakanishi village in their effort to reach the Jichaku ridge mass. To the east, Hamilton’s Companies A and B positioned troops on the edge of the Maeda Escarpment but made no significant gains due to the enemy's intense machine-gun fire. The 17th Regiment eventually mopped up Onaga village, with the 1st Battalion taking control of the area, although they failed to capture Kochi during their renewed efforts. On May 3, after a dawn artillery preparation, the 1st Battalion on the east and the 3rd Battalion on the west advanced in a coordinated attack, which included a movement by Company C against How Hill on the eastern flank of Kochi Ridge. However, this entire effort was thwarted as heavy enemy artillery and machine-gun fire halted all progress. During 3 May the 1st Battalion, 307th Infantry, fought a desperate grenade battle to win the top of part of the escarpment. The Japanese showered the top with grenades and knee mortars from the reverse slope and with 81-mm. mortar fire from a distance. Men came back across the narrow top of the escarpment to the north side, swearing and crying, saying they would not go back into the fight. "Yet," observed one platoon leader, "in five minutes' time those men would go back there tossing grenades as fast as they could pull the pins."Finally, while the 1st Marines made only limited gains as they pushed toward the Asa River, the 5th Marines successfully cleared the Awacha Pocket and advanced between 300 and 600 yards in their zone.
Unbeknownst to the Americans, their slow, incremental advances and the looming threat of a costly, protracted campaign were far from their only concerns. By the 29th General Cho had argued that in the present state of affairs, the Americans had the upper hand. If the status quo continued, the 32nd Army eventually would be wiped out. At this meeting, only Colonel Yahara spoke for continuing the war of attrition and avoiding an offensive. Yahara pointed out that in modern warfare a superiority of 3 to 1 was usually needed for successful attack. "To take the offensive with inferior forces… is reckless and would lead to certain defeat," he said. Second, the high ground around Minami-Uebaru had already fallen into American hands, giving them a major advantage in defensive terrain. Third, Yahara argued, a hasty offensive would fail, with thousands needlessly lost. Then, 32nd Army's reduced forces would be unable to hold Okinawa for a long period and unable to delay the invasion of Japan. A hasty attack would cause 32nd Army to fail in its duty. And yet, the other young staff members were silent. Cho then declared again that he hoped for an attack to snatch life from the midst of death. At this, Yahara left the room. All the other staff members then agreed to launch an offensive. Cho then tried to manage Yahara by sheer emotional force. At dawn on April 30, before Yahara "had time to splash water on his face," Cho appeared at his quarters. Cho squeezed Yahara's hand and said with genuine enthusiasm that there had been nothing but trouble between them in the past and that they would probably both die together on Okinawa. Cho then asked if Yahara, on this one occasion, would go along with the offensive. As Cho spoke, his tears fell abundantly. Yahara was deeply moved, despite his aloof reputation, and before long he was weeping too. He was overcome by Cho's sudden display of emotion and said, "I consent." Again I have to say, in the “battle of Okinawa” by Yahara, basically his memoirs, in which he notably lies a bunch to cover himself, but I digress, this moment amongst others are really interesting, I highly recommend reading the book.
Cho’s plan outlined that General Amamiya’s 24th Division would lead the main effort on May 4, executing a two-pronged attack on the right half of the line. They intended to sweep past the Tanabaru Escarpment toward Minami-Uebaru hill, ultimately reaching the Futema-Atsuta line. Meanwhile, General Suzuki’s 44th Independent Mixed Brigade was to shift from its reserve position behind the 62nd Division to a location northeast of Shuri and move northwest toward the coastal town of Oyama, effectively cutting off the 1st Marine Division’s retreat. In conjunction with this, General Fujioka’s battered 62nd Division would hold its position on the left flank and mount an offensive once the attacking units on its right had breached enemy lines. Additionally, the 23rd and 26th Shipping Engineer Regiments were tasked with conducting counterlandings in the American rear on the east and west coasts, respectively. The Japanese reasoned that success depended on the extent to which they could support their frontline troops with artillery, tanks, supplies, and communications. Their plans specified in detail the role that each of the support units was to play in the projected operations. Artillery units were ordered to regroup in preparation for the attack. Guns and howitzers were pulled out of cave positions and set up farther south in more open emplacements for greater flexibility. They were to open fire thirty minutes before the attack. When the infantry had driven through the American front lines, artillerymen were to move their weapons forward. The 27th Tank Regiment, hitherto uncommitted, was ordered to move from its position near Yonabaru during the night over several routes and support the attack in the Maeda area. To support this comprehensive offensive, Ugaki was alerted to prepare for the fifth mass Kikisui attack directed against the enemy’s naval forces. Once the plans were finalized and preparations well underway, Ushijima and Cho celebrated with a pre-victory banquet in their chambers at headquarters.
Even as Ushijima's banquet was underway, offensive operations had commenced. Japanese troops infiltrated behind American lines during the night while the shipping engineers prepared for their counterlandings. The 26th and 23d Shipping Engineer Regiments set out up the west and east coasts. On beaches south of Naha and Yonabaru, men of the shipping engineer regiments piled into barges and assault boats. Also, small groups of soldiers with light machine guns infiltrated behind U.S. lines on the night of 3 May to attack Americans as they became visible at dawn. Small units of three or four men, variously designated as "reconnaissance raiding" and "rear harassing" teams, proceeded toward the American lines to attack command posts, heavy weapons, communications, and depots and to send back information by means of smoke signals. The 27th Tank Regiment rumbled up to Ishimmi, several of its tanks being severely damaged by American artillery fire en route.
Ugaki’s fifth Kikisui attack began on the afternoon of May 3, when at least 19 kamikazes sortied from Formosa, stealthily approaching the American convoys. They successfully sank the destroyer Little and one landing craft, while severely damaging two destroyer-minelayers and another landing craft. Additionally, Japanese aircraft targeted shore installations, focusing their efforts on Yontan airfield. In Nakagusuku Bay, a suicide boat further damaged a cargo ship. At 02:00 on May 4, most of the boats from the 26th Shipping Engineer Regiment were spotted approaching the heavily defended area of Kuwan. Armed with antitank guns, heavy machine guns, light arms, and thousands of satchel charges, several hundred men of the 26th Shipping Engineer Regiment headed under overcast skies for landing places below Yontan and Kadena airfields. They miscalculated their position and turned, into the shore at a point where it was heavily defended. At 0200 riflemen of the 1st Marine Division on the sea wall near Kuwan caught sight of ten barges and opened up with concentrated fire. Naval flares lighted up the area. One company fired 1,100 rounds from 60-mm. mortars. Several enemy barges burst into flames. One platoon of marines used fifty boxes of ammunition and burned out six machine-gun barrels as it sprayed the Japanese trying to cross the reef. Although many of the engineers managed to reach the shore, some fled back to the Japanese lines, while others were trapped in Kuwan, where they were mopped up by the Marines at their leisure. A smaller group of Japanese forces advanced almost as far as Chatan, ultimately landing at Isa, where they were contained without much difficulty and destroyed the following day. The amphibious assault was even less successful on the east coast of Okinawa, as the 25th Shipping Engineer Regiment attempted to land near Ouki. Most of these troops were killed by fire from ships in Buckner Bay or by the 7th Division Reconnaissance Troop on land. As a result, the Japanese suffered losses of 500 to 800 men and nearly all their landing craft during these amphibious assaults.
At 05:00, Ugaki initiated his main mass attack, launching 125 kamikazes and 103 escorting fighters from Kyushu to target Admiral Rawlings’ Task Force 57, which was currently striking the Miyako and Ishigaki airfields. Taking advantage of the weakened anti-aircraft defenses, the kamikazes managed to score hits on the carriers Formidable and Indomitable, though both vessels ultimately survived. They also targeted American shipping, successfully sinking destroyers Morrison and Luce, along with three landing craft. Additionally, they inflicted further damage on the light cruiser Birmingham, the escort carrier Sangamon, the destroyer Ingraham, and two destroyer-minelayers, resulting in a total of 589 sailors killed.
On land, following a heavy artillery bombardment during the night, the 24th Division commenced its main assault. In the pitch darkness Japanese troops made their way toward the American front lines. At 0500 two red flares ordered them to attack. As the artillery fire became heavy, a guard of Company A, 17th Infantry, on a hill just north of Onaga, dropped back below the crest for cover. He thought that the enemy would not attack through his own artillery, but the enemy did just that. A few Japanese appeared on the crest and set up a light machine gun. Pfc. Tillman H. Black, a BAR man, killed the gunner, and as more of the enemy came over the crest he killed four Japanese who tried to man the machine gun. The enemy advanced over the crest in ragged groups, enabling Black to hold his own. Soon the whole company was in action and drove the enemy off the crest. The Japanese abandoned three light machine guns, four mortars, and much ammunition.
At another point a surprise attack nearly succeeded. On high ground 1,000 yards east of Onaga a group of Japanese crept up the hill in front of Company I, 184th, commanded by Capt. James Parker. In the sudden onslaught that followed, two heavy machine gun crews abandoned their positions. One of them left its weapon intact, and the Japanese promptly took it over and swung it around on the company. Parker, watching the attack from the ridge, had anticipated the move. The Japanese managed to fire one burst; then Parker destroyed the usurped weapon with his remaining heavy machine gun. For an hour or two longer the Japanese clung to the forward slopes, firing their rifles amid shrill screams, but they made no further progress. By dawn the general pattern of the Japanese attack on the left (east) of the 14th Corps line was becoming clear. In the 184th's sector the enemy's 89th Regiment, following instructions to "close in on the enemy by taking advantage of cover,"had advanced around the east slopes of Conical Hill, crept across the flats, and assembled in force around the "Y ridges" east of Onaga. They had outflanked three companies of the 184th on Chimney Crag and the Roulette Wheel north of Kuhazu, and had also managed to evade the forward battalions of the 17th around Kochi. Another Japanese element had attacked 7th Division lines on the high ground north of Unaha.
At dawn 1st Lt. Richard S. McCracken, commanding Company A, 184th, observed 2,000 Japanese soldiers in the open area east and north of Kuhazu. They were perfect "artillery meat." Unable to get through to his artillery support, McCracken called his battalion commander, Colonel Maybury, and described the lucrative targets. Maybury was equally pleased. McCracken suggested, however, that the Colonel should not be too happy--a group of Japanese at that moment was within 100 yards of Maybury's observation post. There was indeed a party of Japanese busily unlimbering two 75-mm, howitzers just below Maybury. But Company C, 17th Infantry, had spotted this activity, and within a few minutes maneuvered tanks into position and scattered the enemy group. Artillery eliminated the Japanese caught in the open. A mortar duel ensued, sometimes at ranges of 250 yards. The 3d Battalion, 32d, also poured fire on the enemy there. After the impetus of the attack was lost, a Japanese officer stood out on open ground and waved his saber to assemble his men for an attack. American mortarmen waited for a worth-while target to develop, then put mortar fire on it. Four times the officer assembled a group, only to have his men killed or scattered, before he was finally killed.
While the 7th Division was repelling the Japanese attack in the eastern sector of the 14th Corps line, the 77th Division was blunting the other enemy "spearhead" in the center. Here the Japanese 32d Regiment, supported by tanks and engineers, attacked behind intense artillery fire. This sector was the critical point of attack, for a break-through here would enable the supporting 44th Independent Mixed Brigade to cut west and isolate the 1st Marine Division. Transportation difficulties beset the 32d Regiment almost from the start. During the night light tanks drove out of Shuri up the Ginowan road (Route 5), but American artillery interdicting the road prevented medium tanks from following. The mediums had to take a long detour, which was in such poor condition that only two of the tanks could enter into the attack. Trucks and artillery also were slowed down. Even foot troops had trouble in moving. One Japanese infantryman recorded that his column was shelled on the way and that everyone except himself and one other was wounded. Another wrote of encountering "terrific bombardment" on the way to Kochi. These difficulties severely handicapped the 32d Regiment in ensuing operations. Supported by nine light tanks, the 3d Battalion led the assault of the 32d Regiment against the 306th Infantry, 77th Division, before dawn on 4 May. The enemy mounted his assault from southeast of Hill 187 and hit the 77th where Route 5 curled around the east end of Urasoe-Mura Escarpment. The Japanese drove into the front lines of the 1st Battalion, 306th, near Maeda. Shortly before daylight, when the Japanese infantry had failed to take its initial objectives east of Hill 187, Colonel Murakami, commanding the 27th Tank Regiment, became impatient and recklessly committed his own infantry company, a standard element of a Japanese tank regiment. American artillery fire destroyed one platoon, disrupting the attack, and daylight found the surviving troops in a precarious position across from the American lines. Colonel Murakami ordered the company to withdraw, but artillery fire prevented a retreat during the day. When the Japanese used smoke for concealment, the Americans simply blanketed the obscured area with shell fire. The survivors straggled back to their front lines after nightfall. All the light tanks that had supported the attack were lost.
By 07:30, the 306th Regiment had effectively repelled the enemy. The Japanese, broken up into small groups, attempted to withdraw across terrain subjected to heavy artillery and mortar fire, but few made it through. By 08:00, the 89th Regiment had also been pushed beyond grenade range along the entire front of the 7th Division. Instead of retreating or pressing the assault, however, Kanayama’s troops made the critical mistake of milling about in the exposed flatlands, rendering them easy targets for American heavy weaponry. As a result, the 89th Regiment suffered severe losses from concentrated land, naval, and air bombardment, losing half its strength. Colonel Yoshida’s 22nd Regiment in the center fared no better; its advance was delayed by the necessity of laying smoke, and it encountered significant hardships when the smoke unexpectedly cleared. In the center of the line the Japanese 22d Regiment was never able to fulfill its role of following up the "successful" advance of flank units, and the regiment spent the day locked in a violent fire fight with men of 3/306, 3/17, and 1/17 holding the Kochi-Onaga area. The Japanese reported the 22d "was not able attain results worth mentioning."
Unbeknownst to the Americans, elements of the 1st Battalion of the 22nd Regiment had penetrated more than 1,000 yards behind American lines near Kochi, identifying a significant weak point before pulling back to the regimental line. Nevertheless, due to the overall failure of the 24th Division, the 44th Independent Mixed Brigade was not even committed to the attack. On the fronts at Maeda and the west coast, American forces made some gains. Hamilton’s 1st Battalion successfully executed a complex demolition assault on the extensive cave-tunnel-pillbox network located about 200 feet west of the eastern end of the escarpment, effectively repulsing several subsequent counterattacks and inflicting approximately 600 casualties on the Japanese. The 5th Marines also advanced up to 400 yards through hotly contested terrain during the day. Although pinned down in the coastal area, Colonel Chappell’s 1st Battalion managed to break through a defile east of Jichaku, while the 3rd Battalion secured a ridge approximately 400 yards ahead of its position.
Despite the apparent failure of the Japanese attack, Amamiya refused to abandon the offensive, ordering a renewed effort during the night. Kitago’s uncommitted 1st Battalion, along with the attached 26th Independent Battalion, was directed to penetrate the enemy lines northwest of Kochi in a night attack, aiming to replicate the breakthrough achieved by elements of the 1st Battalion of the 22nd Regiment. Following another artillery bombardment, the Japanese launched their assault against the 306th Regiment at 02:00 on May 5. However, this attack was quickly disrupted by American artillery. Three hours later, the Japanese struck again, this time supported by tanks. They pressed through artillery and mortar fire to engage the 306th in close combat. Fierce firefights erupted along the regiment's entire line, resulting in the Japanese suffering 248 dead during the fighting. Amid the chaos, a significant portion of Kitago’s 1st Battalion successfully infiltrated behind American lines, breaching the defenses at a point between Route 5 and Kochi. While approximately 90 of the infiltrators were quickly killed while assaulting the command post of the 306th Regiment, around 450 Japanese troops crossed the divisional boundary and managed to reoccupy the town of Tanabaru and the Tanabaru Escarpment, effectively cutting off the supply road for the 17th Regiment. In response, Pachler sent Company E to eliminate the infiltrators, but they underestimated the enemy's strength and were repelled with heavy losses. With Company E stalled on the eastern slope of the escarpment, Company F, supported by tanks, attempted a broad flanking maneuver. They successfully pushed through Tanabaru, spending the day destroying the enemy’s hastily established defenses. Company E then took over the assault, and by nightfall, they had reached the top of the Tanabaru Escarpment following a mortar preparation.
The relentless battle for the Tanabaru Escarpment continued for the next two days, resulting in the Japanese losing 462 killed behind American lines. Only a few men managed to escape the Tanabaru death trap and return to the Shuri lines. Made even more desperate by the failure of Amamiya’s grand attack, the ragtag battalions of the 62nd Division fought to the death to defend the vital western approaches to Shuri, ensuring that every yard gained came at a steep price in Marine lives. Each pillbox, cave, and tomb became a stronghold that unleashed a torrent of fire against the attacking Marines from all directions. Despite this fierce resistance, Del Valle’s units made significant progress on May 5. The 5th Marines advanced their lines by an average of 300 yards, while the 1st Marines seized the high ground along the Asa River. At the Maeda Escarpment, the reverse slope was slowly captured as caves were blasted and sealed off. By midnight, it became clear to Ushijima that the counteroffensive had failed, with the Japanese suffering approximately 6,227 dead and losing 59 artillery pieces. In turn, the 7th and 77th Divisions, which had absorbed the brunt of the enemy counterattack, sustained 714 losses. Despite these heavy casualties, the 1st Marine Division, which continued its push to the south, incurred corresponding losses of 649 men. This indicated that the Americans experienced greater losses due to the Japanese defensive tactics of attrition. However, the morale of the 32nd Army had been shattered, as the Japanese abandoned all hope for a successful outcome from the operation. Nevertheless, the 24th Division and 5th Artillery Command were ordered to reorganize and shift to a holding action. This strategy aimed to bleed American strength by forcing the 10th Army to maintain its slow, deadly, yard-by-yard advance into the fire of prepared positions.
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In the fierce Second Okinawa Counteroffensive, weary American troops pressed into determined Japanese defenses. Captain Ryan's valor led to hard-won territory despite heavy casualties. As chaos unfolded, Japanese morale waned, marking a turning point. The relentless battle showcased unparalleled sacrifice, foreshadowing the Allies' gradual victory in the Pacific.
