Essential Geopolitics: A Korean Arms Race?

In this episode of RANE's  Essential Geopolitics podcast powered by Stratfor, Emily Donahue gets a security update from Stratfor Senior Vice President of Strategic analysis at RANE, Rodger Baker. North Korea recently tested long-range cruise missiles and short-range ballistic missiles. South Korea carried out a test of its new submarine-launched ballistic missile. How should we interpret what appears to be an accelerating arms race between the two Koreas?