護國戰爭
In March 1916 (the 5th year of the Republic of China), during the National Protection War (Third Revolution), Lu Rongting declared independence against Yuan Shikai, who declared himself the Emperor of the Empire of China (1915–1916). Lu Rongting attacked Guangdong General (Supervisor) Long Jiguang, who backed Yuan. Shen Hongying followed Lu Rongting and was appointed as the guardian of Qinlian. In December 1917 (the 6th year of the Republic of China), when Long Jiguang landed in Guangdong again, Lu Rongting organized four armies to fight him. At this time, Shen was appointed as the General Commander of the Third Army. Shen Hongying repelled Long Jiguang.