Propaganda played a critical role during World War I, utilized by all combatant nations to bolster support for the war effort, boost morale, and demonize the enemy. Governments mobilized vast resources into propaganda campaigns, employing posters, films, speeches, and literature to shape public opinion. It encouraged enlistment, promoted war bonds, and aimed to maintain national unity. Additionally, propaganda portrayed the war as a noble cause, appealing to patriotism and vilifying adversaries. This manipulation of information not only influenced civilian sentiment but also affected soldiers’ resolve, underscoring the importance of psychological warfare alongside traditional military strategies.