Last time we spoke about the battle of the Driniumor River. In July and August, American and Japanese forces clashed near Afua in New Guinea. Troop A of the 112th Cavalry engaged Japanese units, pushing them back temporarily. Troop C replaced Troop A but was soon isolated by Japanese attacks. The American TED Force, including the 124th and 169th Infantry, launched a counteroffensive, facing heavy resistance. Despite supply and terrain challenges, TED Force advanced, forcing the Japanese to...
Last time we spoke about the battle of the Driniumor River. In July and August, American and Japanese forces clashed near Afua in New Guinea. Troop A of the 112th Cavalry engaged Japanese units, pushing them back temporarily. Troop C replaced Troop A but was soon isolated by Japanese attacks. The American TED Force, including the 124th and 169th Infantry, launched a counteroffensive, facing heavy resistance. Despite supply and terrain challenges, TED Force advanced, forcing the Japanese to gradually withdraw. By early August, the Japanese launched fierce and desperate attacks, but American defenses held firm. TED Force continued its advance, encountering further fierce Japanese resistance but successfully disrupting their supply lines. The Japanese, suffering heavy losses, were finally forced to begin a general retreat, as the American forces consolidated their positions by early August. It seemed Green Hell was still living up to its dreadful nickname.
This episode is Operation Dan
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.
This week we are picking up with the action along the CBI theater. In Yunnan, by the end of July, General Wei's Y Force was still engaged in efforts to eliminate the resilient but small Japanese garrisons at Tengchong, Mount Song, Pingda, and Longling. Simultaneously, the 33rd Army was striving to accelerate preparations for Operation Dan, anticipating resistance from General Honda's main garrisons until September's end. Following the fall of Myitkyina in August, Honda recognized the need to expedite his offensive plans, despite delays in the deployment of the 2nd and 18th Divisions. Additional reinforcements from the 49th Division were expected in Mandalay by September, bolstering Honda's position. Meanwhile, General Matsuyama faced the challenge of isolated garrisons cut off from his 56th Division, surrounded by superior enemy forces. With his main forces focused on imminent offensive preparations, Matsuyama could only provide moral support through radio messages. Colonel Matsui's recent successes reduced Chinese activity on the Mangshi front, allowing for the rehabilitation of the 113th Regiment by August, despite occasional small-scale raids. At Tengchong, Colonel Kurashige resolved to defend the Walled City to the last man against relentless infantry assaults, air bombardments, and continuous enemy artillery preparations.
Compared with the defenses of Lameng, the positions at Tengchong were much less effective due to the factors of disadvantageous terrain and the lack of time to make defense preparations. Tengchong Castle covered an area slightly over a half-mile square; and was surrounded by a rampart 16 to 20 feet in height and over six feet thick at the top. Although the rampart had a stone facing and was backed with clay, it was not proof against an artillery bombardment and considerable work was required to strengthen it. Concrete or stone pillboxes were constructed adjacent to all gates and at the four corners. Shelters were built to protect guns and machine guns mounted on the rampart as well as for the troops and supplies inside the wall. Other entrenchments were prepared within the castle itself. While these measures greatly strengthened the defenses, the castle was still not proof against an intensive air or artillery bombardment. Recognizing the southeast as the primary avenue of approach, General Huo directed his forces to concentrate their main efforts in that direction.
On August 2, following another bombing raid by twelve B-25s that created a gap fifteen feet wide, the 36th and 116th Divisions initiated a new general assault. The Japanese quickly worked to repair the breach and fired machine guns to cover it. It was only after concentrating guns, rockets, and flamethrowers on the southwest pillbox, along with five waves of fighter cover fire, that the Chinese were able to position scaling ladders against the wall. Two companies then seized the top of the wall just east of the southern corner on August 3. Overnight, Kurashige led a successful counterattack that restored defenses along the rampart, except for one platoon that held its ground all night. This platoon's resilience allowed Chinese reinforcements to pass through the breach on August 4 and seize a pillbox inside the city. With the walls breached, the fall of Tengchong became inevitable, but the determined defenders continued to resist fiercely in the coming days, inflicting heavy casualties on the Chinese attackers. Meanwhile, Major Kanemitsu’s Lameng Garrison defended Moung Song fiercely. After the Hondo Position fell, the 308th Regiment resumed the advance on 3 August it had flamethrowers which it used with devastating effect to take the crest of Kung Lung-po. There the Chinese found several Japanese tankettes, which had been dug in for use as pillboxes. Despite repelling enemy attacks with great effort, the Japanese faced dangerously low ammunition supplies. As a result, Kanemitsu decided to raid the 8th Army's artillery positions and supply dumps to replenish his ammunition stocks. Twenty-nine men, selected from the artillery battalion, were divided into two teams for the purpose. One team was to raid the artillery positions on Shirakabe and Haraguchi Hills as well as to attack motor vehicles on the road between Lameng and Huitung Bridge. The second team was to operate in the area to the south and west of the Gake and Hondo Positions.
On the night of August 9, seven groups of Japanese volunteers launched a surprise attack, destroying several howitzers and seizing light weapons and ammunition. Despite Kanemitsu’s initial success and his troops' resilient defense against Chinese infantry assaults, General Song opted to revert to conventional siege tactics starting August 11. His divisions began digging tunnels beneath key Japanese strongholds in the Mount Song triangle, each tunnel stretching 22 feet to accommodate two powerful mines aimed at enemy pillboxes.One mine held 2,500 pounds of TNT, the other mine held 3,500 pounds of TNT. The mines detonated on August 20, causing significant damage that engineers exploited swiftly with flamethrowers, capturing Kanemitsu’s primary stronghold. In one pillbox forty-two Japanese were buried alive, of whom five were rescued. The prisoners stated that they had been asleep and had never suspected that they were being undermined. At 0920 the 3d Regiment against light opposition took the few strongpoints that remained on Sung Shan proper. In spite of particularly heavy pressure being exerted against the Sekiyama Position, the enemy had made little progress. However, on 19 August, following a heavy bombardment three tremendous blasts shook the Sekiyama Position. The Chinese, becoming discouraged with trying to storm the position, had tunneled under it, the defenders of the Sekiyama Position were virtually annihilated and the position fell to the enemy. On 23 August the Lameng Garrison regrouped to make final resist- ance in the Otobeyama, Nishiyama, Matsuyama, Yokomata and Urayama Po- sitions. The total number available for defense had been reduced to about 150 men, all of whom were wounded, some seriously. Even those who had lost an arm or a leg were propped up in positions where they could fire a rifle or sight a gun. The Lameng Garrison continued to resist in scattered pockets, launching futile counterattacks, Song recognized the battle's turning point.
During the latter part of July and early August, the Yunnan Force made new troop dispositions and moved in three divisions to attack the town. The main force of the Chinese 87th Division was on the east front, with an element along the Tien-Mien Road; the New 28th Division was between the two elements of the 87th; elements of the 1st Honor Division were on the north front with the New 39th Division on the south and west of Longling. At dawn on 14 August, preceded by an intense concentration of artillery fire and air bombardment, the Chinese forces launched a coordinated attack from all sides. Hill 6 bore the brunt of the enemy attack for eight hours but managed to hold, as did the defenders on the main line of resistance. After the attack had ceased, the Garrison spent the entire night rebuilding defenses, using rubble and half-burned mate- rial from the town. However, five days later, Chinese forces captured the eastern hills, weakening the entire Japanese defensive line. Consequently, by August 23, the eastern front collapsed, compelling the Japanese to retreat from their main defensive positions to reserve positions within the town.
Matsuyama was aware that under the current conditions, Longling would likely fall before September began. While the timely reinforcement of the 3rd Battalion, 148th Regiment would enable the garrison to hold out for a few more days, he understood the urgency of accelerating the Dan offensive to relieve Longling. Starting on 26 August, the 2nd Division began moving from Namhkam to Mangshih under cover of darkness, requiring three nights to complete the movement. Shortly thereafter, the headquarters of the 16th Regiment was called from Bhamo to Mangshih and Col. Hara Yoshimi, commanding officer of the 2nd Reconnaissance Regiment, succeeded Col. Sakai as commander of the Bhamo Garrison, which was placed under 18th Division control. On 30 August, the Division conducted a war game followed by a conference to brief subordinate commanders on the plans and missions of the Dan Operation.
With the recent arrival of the 4th and 146th Regiments, Matsuyama planned to send Matsui’s Task Force and the 146th Regiment northwestward to clear the western sector. Meanwhile, General Okazaki’s 2nd Division would attack northeastward to defeat the main enemy force in the eastern sector, thus fully relieving Longling. Subsequently, the 56th Division would advance towards Tengchong, while the 2nd Division moved towards Lameng, to relieve both isolated garrisons. However, before this offensive could begin, new developments emerged from Tengchong. Realizing that assaults on the ramparts were too costly, Huo ordered his Chinese troops to start tunneling under the walls. Additionally, air attacks increased in intensity, and on August 13, several large bombs struck the headquarters, killing Kurashige and leaving the garrison nearly leaderless. The following morning, after a heavy artillery bombardment of about 20,000 rounds, Huo launched his second general attack.
Despite the garrison's determined defense against Chinese attempts to breach or scale the ramparts, Huo reinforced his southern assault with the 198th Division, applying intense pressure. While defenders held against the combined attacks of more than two divisions, the 198th Division, which had made several ineffectual attacks in the northwestern sectors, was brought south to reinforce the units already there. Three divisions pitted against the badly damaged southern wall could not be held off and Chinese troops began infiltrating beyond the rampart. The garrison launched successive counterattacks and, while they were successful in driving the enemy out on the first two occasions, the third counterattack so exhausted the defenders that the enemy held the southwest corner of the compound. The Chinese were not, however, able to make any appreciable headway in breaching any other part of the castle's defenses.
Three days later, following another heavy air and artillery bombardment that succeeded in making seven breaches in the southern rampart, the Chinese resumed the offensive and managed to force the garrison to relinquish all but the southeast corner of the southern part of the castle compound. On August 22, a fourth attack was then launched; and, in spite of valiant efforts by the defenders, the west gate of the castle was finally taken by the 198th Division early in the morning of August 24. The following day, about 500 grenades and medical supplies were dropped by 12 Japanese fighters, which bolstered the garrison’s morale even though their fate was pretty much sealed already.
Simultaneously, Matsuyama initiated Operation Dan on August 26, with Matsui’s Task Force struggling for six days to secure control of Komatsu Hill before advancing towards Shuangpo on September 1. The Dan Offensive opened inauspiciously with an unsuccessful attack on Komatsu Hill, about three miles south of Lungling. Launched by the 1st Battalion, of the 113th Infantry (Takeda Battalion), on the morning of the 26th, the attack was thrown back and it was not until the following morning after the 3d Battalion, of the 113th (Murakami Battalion) had been thrown into the attack that the Takeda Battalion succeeded in seizing the western half of the hill. Upon achieving the objective, the Murakami Battalion was withdrawn and the Takeda Battalion was exposed to severe counterattacks which the enemy repeated for four days. The Takeda Battalion sustained extremely heavy losses, including the loss of three company commanders. The Inose Battalion attacked the hill from the northeast on 30 August and succeeded in making contact with the Takeda Battalion the following day but the northern part of the hill still remained in the possession of the enemy. Unable to hold up the advance any longer, the Inose Battalion was left at Komatsu Hill to clean out the remnants of the enemy and the main body of the Matsui Column advanced to Shuangpo on 1 September, fighting their way through enemy resistance.
The 146th Regiment successfully bypassed Chinese forces blocking the Tien-Mien Road, reaching the ridge west of Shuangpo. The 113th and 146th Regiments continued their northwestward advance, reaching the Longling River line by September 6, where they nearly wiped out the New 39th Division. Meanwhile, Okazaki assembled his 4th, 16th, and 29th Regiments at Shuangpo, preparing for an offensive. To the south, the 76th Division persisted in defending Komatsu Hill despite heavy casualties. Okazaki directed the 4th Regiment to attack the enemy’s northern positions on September 3, resulting in repeated assaults over the next three days. Despite suffering significant losses, the Japanese were compelled to halt their local offensive.
In the meantime, the 16th and 29th Regiments moved northeastward. The 29th Regiment successfully breached enemy positions and linked up with the besieged garrison by September 6. Despite this victory at Longling, subsequent events at Mount Song and Tengchong rendered Operation Dan futile. On August 29, following the fall of the Otobeyama Position, Kanemitsu realized that resistance could only last a few more days. On September 5 Major Kanemitsu sent to the commander of the 56th Division a final radio message: “All of my brave officers and men have determinedly defended our position for 120 days since May 10 with a sublime spirit of self-sacrifice and an attitude of absolute obedience. However, our ammunition has been entirely expended and practically every officer and man is wounded. The final moment has come. We will burn the colors and code books and make a suicide stand with what strength remains. I do not have the words to apologize for the fact that, because of my unresourceful command, we have been unable to hold out as long as expected. We are deeply moved by your long and special consideration of our situation. I respectfully ask that everything possible be done for the bereaved families of the officers and men of the Lameng Garrison. Our souls will continue to pray for the eternal prosperity of the Imperial Throne and the final victory of the Japanese Forces.”
Consequently, on September 5, he concentrated his remaining forces in the northernmost positions, which came under heavy enemy fire the next day. After Kanemitsu's death from a mortar shell, the Japanese burned their colors and euthanized their wounded. They launched a final suicide charge on September 7, resulting in the death of the remaining 50 survivors. Of the 1260 Japanese at Lameng Garrison, only 9 were captured and 10 believed to have escaped, with the rest perishing at the hands of Song's divisions, totaling approximately 41,675 troops. The significance of Mount Song lies in the four-month siege to clear the block from the Burma Road, during which the Chinese suffered 7675 casualties, including around 5000 from the 8th Army, leaving it with only two understrength regiments fit for further combat at Longling. Meanwhile, on August 31, Huo's fifth attack pressed with great enthusiasm, eventually succeeding in taking the southeast corner, which had withstood the onslaught of two divisions for over a month. The garrison was then pressed back to a line running from the east gate through the center of the palace grounds to the northwest corner of the castle grounds. The number of survivors had been reduced to approximately 350, virtually all of whom were wounded. Five days later, the Chinese attacked once again, successfully effecting a breakthrough of the defensive line which split the defending force into two groups. By September 9, the northwest corner had been completely overrun and only 70 men remained to hold the northeast corner. Realizing that the end was near, the Japanese burned their colors and on September 14 launched a last suicide charge in which the remainder of the garrison was finally cut down.
In a valiant defense, rivaling that of the Lameng Garrison, the 2025 men of the Tengchong Garrison held off the Chinese 20th Army, numbering an estimated 50,000 troops, for approximately 80 days. Despite this, the capture of Tengchong marked a significant victory for Y Force, as it opened a viable route to Myitkyina known as the "Tengchong cut-off". Moreover, the fall of Tengchong and Lameng allowed the Chinese to deploy more troops to counter the Dan offensive. In the early hours of September 7, the 113th and 146th Regiments crossed the Longling River and launched an assault on the 1st Honor Division, entrenched in strong defensive positions. Although General Matsui’s battalions were repelled by determined defenders, the 146th Regiment made notable progress on the left, gradually pushing the Chinese forces northward. By September 9, the western and northern sectors had been partially cleared, and the Longling Garrison was nearly completely relieved. Simultaneously, the 29th Regiment, supported by remnants of the 16th Regiment and the 2nd Field Artillery Regiment, advanced northeast towards the eastern hills, encountering difficulty in capturing them. By September 9, they had only secured one of the hills. With Honda growing impatient due to the slow progress of the 2nd Division. Okazaki directed increased attacks in the following days. An attack was launched on 11 September but did not succeed. Then an attack conducted on the 12th, y the 3d Battalion, 29th Infantry was successful in seizing the hill, however a counterattack by the enemy resulted in the annihilation of the Battalion and the retaking of the hill by the Chinese.
Furthermore, Okazaki also noted that the Chinese were still holding their ground to the south. Consequently, orders were issued for the 1st Battalion, 16th Regiment to address this lingering threat. However, the battalion exhibited such limited initiative that Colonel Tsuji Masanobu of the 33rd Army staff assumed direct command of the frontline units. With the addition of another battalion, this proactive commander led his troops in a series of vigorous assaults, culminating in the capture of the southern hill by September 15. Meanwhile, to the north, Matsuyama successfully relieved Longling, yet a new challenge emerged. The formidable 200th Division had arrived from Kunming and launched immediate attacks against the 113th and 146th Regiments by September 9. Fortunately, Matsuyama received reinforcements in the form of the 3rd Battalion, 148th Regiment and the reserve 168th Regiment, effectively clearing the northern sector by September 11. Positioned defensively, Matsuyama’s forces continued to fend off repeated counterattacks from the aggressive 200th Division, while the 168th Regiment moved westward to confront a significant element of the 36th Division advancing south from Tengchong. At this juncture, the Japanese had suffered approximately 1800 killed and 2500 wounded, while Honda estimated inflicting over 63,000 casualties since May. Despite the costly relief of Longling by mid-September, the 33rd Army had failed to reach the Nu Chiang River or rescue the Lameng or Tengchong Garrisons. Moreover, with Tengchong's fall, the entire 20th Army Group was mobilizing to reinforce Chinese forces engaged in the Longling campaign.
Realizing that Operation Dan faced inevitable failure, Honda opted to halt the offensive. Instead, he directed the 2nd Division to undertake a defensive stance south of Longling. Simultaneously, the 56th Division and the 168th Regiment disengaged from the enemy, moving southwards to relieve the Pingda Garrison. On September 16, the divisions rotated smoothly: the 56th Division gathered east of Mangshi, while Colonel Yoshida Shiro’s 168th Regiment initiated a covering attack to the east. This left the Longling Garrison vulnerable, prompting its commander to defy Honda’s orders and withdraw during the night. Lt. Col. Komuro's action came as a shock to Army and Division headquarters and, although he later committed suicide to atone for his act, the commander and the Garrison were considered to have disgraced themselves and the Japanese Army. Lt. Col. Nagai, a staff officer of the 56th Division, when questioned in 1959 made the following statement: "The Longling Garrison had twice before made great and courageous stands against tremendous odds. They were all exhausted by their efforts and had expected to be relieved. It is understandable that the Garrison should bitterly resent being placed in a position where they might possibly be surrounded in Longling a third time. The defense line of the 2nd Division was so drawn as to leave Longling projecting and constituting a primary target for enemy attacks. It should also be borne in mind that the Garrison was not an organic unit but was, instead, a composite group composed of various elements without the esprit de corps of a regular unit. Although Lt. Col. Komuro was a respected officer, his tendency toward a philosophical approach to life may have made it impossible for him to hold out against the unanimous discontent and resentment of his subordinates."
Fortunately, Matsui’s 3rd Battalion arrived in Longling two days later without encountering Chinese forces. Despite being outnumbered, the 2nd Division managed to maintain its extended front by destabilizing the enemy and conducting nightly raids. On September 17, Matsui launched a successful relief operation, driving the 9th Division from the Sahngzhai area. Concurrently, the 146th Regiment embarked on a forced march towards Pingda; by September 22, it breached the enemy lines, reaching the besieged city. Having been isolated for nearly six months, there were scenes of wild rejoicing as the besieged Garrison welcomed the Imaoka Column. Carrying about 150 casualties on stretchers the combined forces of the Imaoka Column and the Pingka Garrison broke through the enemy lines at night and, on the 24th, reached Liangtzuchai where they were covered by the Matsui Column. Both units withdrew to Mangshih and, when the Yoshida Force subsequently pulled back from Isao Hill, the Pingka relief operation was concluded. Following the conclusion of the Pingda relief operation, Honda began preparations for the impending enemy offensive.
Subsequently, the 56th Division was tasked again with defending Longling and Mangshi, while the 2nd Division relocated to Muse to prepare for a potential counterattack in the Shweli River valley. Meanwhile, the rested and reorganized 18th Division, now under Lieutenant-General Naka Eitaro, successfully concentrated at Namhkam by the end of September. The 33d Army expected that the main force would arrive prior to the end of the month, but the movement was executed very slowly and units were arriving in Namhkan throughout the month of September. Upon arrival of the Division at Namhkan, the units continued the work on fortification construction that had been started by the 2d Division. The main body of the Division moved via rail through Mandalay, while the 55th Infantry Regiment, with one artillery battalion and one engineer company advanced through Katha, Kunchaung and Sikaw on foot. The Division was gradually built up and, by the end of September, had achieved a strength of about 7,000 men. Since the replacements for the most part consisted of men recently discharged from hospitals, the complete recovery of the Division was understandably slow. The 18th Division finally managed to concentrate in Namhkam by 1 the early part of October. On 2 October, when Lt. Gen. Naka, who was replacing Lt. Gen. Tanaka, arrived at Namhkam, he found that the Division still had not fully recovered from the effects of the Hukawng Operation. However, abundant food supplies in the area, combined with excellent climate, enabled the division to make an unexpectedly rapid recovery during the month of October. By early November, the strength of the Division had been built up to about 9,000 men of whom about 3,000 were reinforcements from Japan. Some tanks and two 149-mm howitzers had been supplied and six mountain guns repaired. During this period of rehabilitation the Division engaged in the construction of defense positions on both sides of the Shweli River in the general area of Namhkam.
This period allowed the Japanese ample time to strengthen their defenses, as Y Force had suffered significant casualties. General Wei found it necessary to retrain and reorganize his depleted divisions before resuming the offensive in Yunnan. Because all of his immediate reserves had been drawn into the fight for Longling, and considering that the Chinese Government had ignored his earlier pleas, Wei Lihuang asked General Dorn, chief of staff of the American personnel working with Y-Force, to present his further requests for 20000 trained replacements (Wei had not received one since the offensive began); for two more divisions; for permission to use the 5th Army's tank battalion; and for Baoshan to be developed as a supply base. Dorn, however, was only partially successful in that the National Military Council renewed its promises to send replacements.
Shifting focus from Yunnan, we turn to the new operations of the 20th Bomber Command. Following the unsuccessful Yawata strike on August 20, Saunders continued planning for the return to Anshan, initially set for August 30 but postponed to September 8. On August 29, Major-General Curtis LeMay assumed command of the 20th Bomber Command. Despite the change in leadership, Saunders' plan remained unchanged: to deploy every serviceable B-29 aircraft. Saunders’ plan was to dispatch every B-29 fit to fly; and so, by September 8, 115 bombers had gathered in the forward area and 108 successfully got off the runways. Of these, 95 reached Anshan to find good weather, with 90 of them dropping 206.5 tons of bombs at the Showa works and 3 bombing other installations while another 5 hit the Xinxiang Railroad Yards and 3 others hit various targets of opportunity. Total losses for the mission were four: a crack-up near Dudhkundi on the way up; two forced landings in China, one destroyed on the ground by enemy planes and one partly salvaged; and a plane listed as missing. The crew of this last plane later walked out with the loss of only one man. The Americans in turn claimed 8 kills, 9 probables and 10 damaged.
The following day, a B-29 reconnaissance plane reported significant damage to the steelworks. Out of the sixteen coke oven batteries, three were estimated to be out of commission for a year, and another three for six months. Additional damage to related installations and the byproducts plant further compounded the impact. Overall, command intelligence officers calculated that the two attacks had reduced Showa's coking output by 35.2%, which in turn would decrease total Japanese rolled steel production by 9.3%. In response to the extensive damage, the Japanese launched their first counterattack against the 20th Bomber Command. Shortly after midnight, Japanese bombers came over Xinjin and attacked the American headquarters, storage areas, and the parked B-29s. Aided apparently by ground signals, the intruders made four runs, dropping fragmentation and high explosive bombs to inflict minor damage on one Superfortress and a C-46, and to wound two soldiers.
Meanwhile, LeMay, who had accompanied the mission to Anshan, was encouraged by the promising results. Despite this, he had been tasked with implementing significant changes to the command. He began revising tactics, tightening and expanding formations, and enhancing training for greater bombing precision—effects that would become evident in the following months. Specifically, LeMay intended to substitute for the current 4-plane diamond formation a 12-plane formation similar to one he had used with his heavies in the ETO. He proposed further to follow 8th Air Force practice by subordinating night missions, so far numbering four of the command’s eight strikes, to daylight precision attacks. This would not mean the abandonment of radar bombing, so vital in variable weather. LeMay’s doctrine called for “synchronous bombing” in which both the bombardier and radar operator followed the bomb run in, with visibility determining who would control the plane during the crucial seconds before release. Precision bombing required training more sustained than the sporadic sessions which the command’s crews had undergone, and fortunately new arrangements for nourishing strikes out of China would release B-29s and their crews from much of the Hump transport duty which had handicapped training. On September 5 LeMay had ordered each group to select 6 lead crews (later increased to 8) upon which other crews in a formation would drop. A week later a school was set up at Dudhkundi, occupied since early July by the 444th Group. Ground training and a simulated mission and critique on each of 10 successive days made the 11-day course at “Dudhkundi Tech” both strenuous and valuable. Meanwhile, the other crews of the 4 combat groups had been working with the 12-plane formation and had made some progress when training was interrupted for the ninth mission.
Most of September was spent initiating LeMay’s reforms, leaving time for only one major operation at the end of the month. Consequently, LeMay decided to finish off Anshan with another 100-plane strike. By September 26, he consequently had 117 B-29s forward, with 109 of them successfully getting airborne the following morning. Though take off had been improved since the last mission, bad weather and a cold front would see only 86 bombers reaching Anshan; 73 of them actually bombing the Showa works, all by radar. Subsequent photographic coverage, however, indicated absolutely no new darnage. In addition, two B-29s bombed Dairen, four Xinxiang, and nine bombed various targets of opportunity. Japanese opposition was likewise ineffective, with the Americans suffering no losses. but during the night, enemy bombers managed to sweep into the Chengdu area to drop three strings of bombs and damage five bombers, two of them seriously. The Chinese warning net had tracked the Japanese planes in from Hankow airfields and the 317th Fighter Control Squadron at Chengtu had ample time to alert command personnel. But the one P-47 up could not make contact. The 312th Wing had suffered with other China-based units from lack of supplies, and in the interest of economy of fuel one of its P-47 groups had been exchanged for the 311th Fighter Group, equipped with P-51B’s. Chennault, reluctant to tie down two full groups for the static defense of Chengtu, had disposed part of the wing forward where the planes could take a more active part in the war, and events were to prove that this policy constituted no serious danger to the B-29 fields.
I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go 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 after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.
By mid-September, intense battles in the CBI theater saw the Japanese forces grappling with diminishing supplies and overwhelming Chinese offensives. Despite heroic defenses at Tengchong and Lameng, Japanese positions fell after heavy casualties and strategic missteps. General Matsuyama's relief efforts at Longling achieved temporary success, yet the broader objectives of Operation Dan were unmet, marking a turning point in the campaign.
