Describe what made world war 1 a total war?

World War I was considered a total war because it involved the complete mobilization of entire nations' resources, economies, and populations to support the war effort. Governments took control over industries, directed labor, and implemented rationing to ensure that military needs were prioritized. Civilians were directly affected through conscription, Propaganda campaigns, and the targeting of civilian infrastructure, blurring the lines between combatants and non-combatants. Additionally, the war's unprecedented scale and impact on society reflected a shift toward modern warfare that required the involvement of all sectors of society.