Operation U-Go

U Go offensive
	Part of the Burma Campaign in the South-East Asian theatre of World War II
	; The summit of Nippon Hill, east of Imphal, which was hotly contested during Operation U-Go
Date	March 1944 – June 1944
Location	Kohima, Naga Hills, Manipur Kingdom and Calcutta in British India
Result	British victory
Belligerents
British Empire India (British Raj);	Empire of Japan Azad Hind;
Commanders and leaders
William Slim; Montagu Stopford; Geoffry Scoones	Renya Mutaguchi; Masakazu Kawabe; Subhas C. Bose
Strength
7 infantry divisions; 1 tank brigade; 2 infantry brigades; 50,000 men	5 infantry divisions; 1 tank regiment; 115,000 men
Casualties and losses
16,987–21,500	15th, 31st and 33rd Divisions:; 12,443 killed; 1,652 missing in action; 8,407 dead from disease; Misc. Army Troops:; 8,000 dead from all causes; Total:; 30,502 dead,; 23,003 hospitalized

The U Go offensive, or Operation C (Japanese: ウ号作戦, U Gō sakusen), was the Japanese offensive launched in March 1944 against forces of the British Empire in the northeast Indian regions of Manipur and the Naga Hills (then administered as part of Assam). Aimed at the Brahmaputra Valley, through the towns of Imphal and Kohima, the offensive along with the overlapping Ha Go offensive was one of the last Japanese offensives during the Second World War. The offensive culminated in the Battles of Imphal and Kohima, where the Japanese and their allies were first held and then pushed back.