What was the footage of smiling soldiers used for in World War 1?

Footage of smiling soldiers during World War I was often used for Propaganda purposes, intended to boost morale both at the front and on the home front. Such imagery portrayed a sense of camaraderie, bravery, and optimism, countering the grim realities of war. By showcasing soldiers in positive light, the propaganda aimed to encourage enlistment and support for the war effort. This footage helped to create a narrative of heroism and duty, fostering national pride among citizens.