Solidarity movement. Wang Keqin Movement was widely carried out by the whole army of China People's Liberation Army from 65438 to 0946, with unity and mutual assistance as its main content. Wang Keqin, the squad leader of the Sixth Column of Shanxi, Hebei, Shandong and Henan, is from Fuyang, Anhui. Wang Keqin was captured by the Kuomintang army as a soldier in 1937, joined our army after liberation in 1945, and joined China in 1946, and died gloriously in the battle of Dingtao in Shandong in July. With the motto of "revolution depends on mutual assistance", he inspired the class consciousness of soldiers with his own personal experience, cared about soldiers everywhere, and founded the method of leading troops with mutual assistance in thought, technology and life. Under his leadership, the whole class United and helped each other, bravely killed the enemy, made meritorious military service repeatedly, and became a combat model class, and he himself became a combat hero.