In 1921 he invaded Guangxi, igniting the Second Ao-Gui War. Lu sent two wings of his army, one led by Tan Haoming and the other under Shen Hongying, into Guangdong where they drove back the Cantonese and occupied Qinzhou and Lianzhou.
In 1921, Lu initiated an invasion of Guangxi, resulting in the Second Ao-Gui War. He sent two military wings, one commanded by Tan Haoming and the other under Shen Hongying, to Guangdong, where they defeated the Cantonese and occupied Qinzhou and Lianzhou.