The Warlord Rebellion in northeastern Shandong was an uprising of several allied Chinese warlord armies under the leadership of Zhang Zongchang in 1929. The rebels wanted to regain their former territories in Shandong from Liu Zhennian, the man who had defected from Zhang to the Nationalist government in Nanjing during the Northern Expedition. After some initial successes, the rebels were defeated due to the indiscipline of their forces. In the end, the uprising failed to topple Liu Zhennian's rule over eastern Shandong, but resulted in high civilian casualties and widespread destruction at the hands of both sides in the conflict.