The first world war, the twentieth lesson of the ninth grade of junior middle school history published by Beijing Normal University, tells the story of the first world war.

19 At the end of the 20th century, the capitalist economy was in a period of rapid development, but the economic development of various countries was unbalanced. Later, the capitalist powers demanded to carve up the colonies again, and the capitalist powers launched a fierce struggle for world hegemony and colonies. In the course of the struggle, Europe gradually formed two major military blocs. The formation of military groups seriously threatened world peace, and the Sarajevo incident ignited the war of the First World War. The Battle of Verdun is a typical battle in the war. Its turning point indicates the victory or defeat of the First World War on the battlefield, and its cruelty confirms the disastrous consequences brought by the war to human society.

World War I was an unjust imperialist war for world hegemony.