Battle of Northern Burma and Western Yunnan

Battle of Northern Burma and Western Yunnan
	Part of the Burma campaign and the Second Sino-Japanese War of World War II
	; Chinese soldiers fight along the Salween River in Burma
Date	October 1943 – March 1945
Location	Northern part of Burma and Western part of the Yunnan province in the Republic of China22°50′N 97°08′E / 22.83°N 97.14°E
Result	Allied victory
Belligerents
China; United Kingdom; United States	Japan; Thailand
Commanders and leaders
Long Yun; Wei Li-huang; Song Xilian; Sun Li-jen	Masakazu Kawabe; Heitarō Kimura
Strength
Western Claim : 400,000; ; Chinese Claim :; X Force (Chinese Army in India) : 60,266 troops; Y Force (Second Chinese Expeditionary Force) : 153,441 troops	Western Claim : 150,000; ; Chinese Claim :; In Northern Burma : 60,408 troops; In Western Yunnan : 33,822 troops
Casualties and losses
Western Claim : 107,000; ; Chinese Claim :; Chinese Army in India: 4,218 killed, 10,403 wounded, and 151 missing; ; Second Chinese Expeditionary Force: 31,443 killed and 35,948 wounded	Western Claim : 108,000 (at least 30,000 Japanese soldiers dead); ; Chinese Claim : ; In Northern Burma: 29,889 killed and 211 captured; In Western Yunnan: 25,102 killed, wounded, or captured ; ; Japanese Claim : In Western Yunnan Counterattack against the Second Chinese Expeditionary Force (29 April until 5 July 1944): 1,719 killed, 1,257 wounded, about 200 died of illness, and about 4,500 fallen ill ; ; First phase of the 'Disrupt' operation (6 July until 5 October 1944): 56th division : 4,868 killed, 1,430 wounded, 386 died of illness, and 11,081 fallen ill 2nd division : about 800 killed, about 800 wounded ; Second phase of the 'Disrupt' operation (5 October 1944 until 26 January 1945): 1,803 killed, 3,194 wounded, 27 died of illness, and 1,822 fallen ill ; ; Total : about 9,190 killed, about 6,681 wounded, about 613 died of illness, and about 17,403 fallen ill; ; In Northern Burma 18th division in the battles of Hukawng and Mogaung Valleys (1 October 1943 until 10 August 1944): 55th infantry regiment and 18th mountain artillery regiment : 2,207 killed, 2,460 wounded, and 90 missing 56th infantry regiment : about 2,553 killed or died of illness, about 60 suspected to have been captured. 12th engineer regiment : about 805 killed, about 100 missing ; 114th infantry regiment of the 18th division in the Siege of Myitkyina (17 May until 5 August 1944): 2,979 killed or died of illness, about 1,821 wounded, and 107 captured ; Other units and battles : unknown

Battle of Northern Burma and Western Yunnan (Chinese: 滇西緬北戰役 October 1943 – March 1945) was the name of the Chinese campaign with their allies in the 1943–45 Burma Campaign. The campaign ended in an Allied victory.

It is one of the large-scale battles of the Second Sino-Japanese War, located in the border area between Yunnan Province, China and northern Myanmar, starting at the beginning of December 1943. The purpose of the battle is to open up the China-India Highway. At the end of March 1945, the Chinese Expeditionary Force, the British Army, and Merrill's Marauders joined forces in Muse, Burma (Myanmar), while the Japanese Army lost the North Burma Stronghold.

The Allied Forces were jointly formed by the troops of China, the United States and the United Kingdom. Among them, the Chinese participating forces included the Chinese Army in India and the Chinese Expeditionary Force. The commander-in-chief of the campaign was General Wei Lihuang of the Chinese National Army, and the deputy commander of the campaign was General Joseph Stilwell of the US Army. The main force of the Japanese army was the Japanese Burmese front. The commander of the battle was Masakazu Kawabe, then Heitaro Kimura, later Shinichi Tanaka and others. The total strength was 200,000-400,000 for Allied and 90,000-150,000 for Japan.

The Battle of Northern Myanmar and Western Yunnan lasted one and a half years. At the cost of more than 80,000 casualties, the Allies claimed to have killed more than 30,000 Japanese soldiers, reopened southwest China to the Burma Road, and recovered all the lost land on the west bank of the Salween River in western Yunnan.