1941 1942 Taishō period Shōwa period The Battle of South Guangxi (traditional Chinese: 桂南會戰; simplified Chinese: 桂南会战; pinyin: Guìnán Huìzhàn) was one of the 22 major engagements between the National Revolutionary Army and Imperial Japanese Army during the Second Sino-Japanese War.

In this battle, the Japanese successfully cut off Chongqing from the ocean, effectively severing foreign aid to China's war efforts by the sea, rendering Indochina, the Burma Road and The Hump the only ways to send aid to China.

The Chinese launched several major offensives that maximized Japanese casualties.

With the success of the Vietnam Expedition in September 1940, the Japanese were able to cut China off from Indochina.

Now only the Burma Road and The Hump remained, ending the costly necessity of occupying Guangxi.