Operation U-Go: The Reckless Japanese Offensive That Ended in Starvation and Total Defeat
In short: In 1944, Japanese commander Renya Mutaguchi launched a desperate invasion of India, aiming to capture Imphal and Kohima. Despite warnings from his own staff about impossible logistics and terrain, he pushed forward. The result was one of the most catastrophic defeats of the war, driven by starvation and disease.
The U-Go offensive, or Operation C, was launched in March 1944 by the Japanese Fifteenth Army. Its commander, Lieutenant-General Renya Mutaguchi, was driven by a belief in his own destiny and a desire to counter British influence in India. He aimed to capture the towns of Imphal and Kohima, hoping to cut Allied supply lines to northern Burma and the airfields supporting Nationalist Chinese forces. The plan was heavily influenced by Subhas Chandra Bose, who led the Indian National Army and argued that an invasion would trigger the collapse of British rule.
The operation faced severe opposition from the start. Many Japanese commanders, including Mutaguchi’s own divisional leaders, considered the plan reckless and logistically impossible. Mutaguchi, however, was emboldened by the earlier success of British Chindit long-range penetration expeditions, which he mistakenly believed proved the terrain was passable. Despite the concerns of senior staff at the Burma Area Army and Southern Expeditionary Army Group, the plan received final sanction from Prime Minister Hideki Tōjō. Once launched, the offensive was largely beyond the control of higher headquarters.
The Allies, commanded by Lieutenant General William Slim, were well-prepared. Having anticipated a Japanese move, they withdrew into defensive positions at Imphal to fight a battle where the Japanese would struggle to maintain supply lines. When the Japanese attacked, they found themselves unable to overcome the Allied reliance on air-dropped supplies. By late June 1944, the Japanese forces were starving and riddled with disease. Mutaguchi’s refusal to halt the attacks led to a total collapse, with the Japanese eventually retreating in disarray. The defeat resulted in 60,643 Japanese casualties, largely due to exhaustion and hunger, and led to the dismissal of Mutaguchi and his senior commanders.
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Sources
- Summary by Intellect · source: Operation U-Go
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