In 1944, with the Japanese position in the Pacific deteriorating rapidly, the IJA mobilized over 500,000 men and launched Operation Ichi-Go, their largest offensive of World War II, to attack the American airbases in China and link up the railway between Manchuria and Vietnam. This brought major cities in Hunan, Henan and Guangxi under Japanese occupation.
The Battle of Guilin–Liuzhou, also known as the Battle of Guiliu, was one of the 22 major engagements between the Chinese National Revolutionary Army and Japanese forces in Guangxi. On 24 November the Japanese were in control of 75 counties in Guangxi, roughly 2/3 its area.
The second Japanese invasion of China aimed to destroy China's main fighting forces, secure railways between Japanese-held territory and capture Allied airfields. The invasion took place from 19 April to 31 December 1944.