During World War II, propaganda played a critical role in shaping public perception and morale. Governments utilized various media—films, posters, and radio broadcasts—to promote national unity, demonize enemies, and encourage enlistment and resource conservation. Propaganda aimed at boosting public support for the war effort, justifying military actions, and fostering anti-Axis sentiment. Notable examples include the U.S. government's "Uncle Sam" recruitment campaigns and British efforts to maintain civilian morale through victory messages. Ultimately, propaganda shaped not just the war’s narrative but also the post-war geopolitical landscape by influencing how societies viewed conflict and foreign relations.