Gueules cassées (broken faces) is a French term for facially disfigured war veterans. It was coined in World War I by Colonel Yves Picot after he was denied entry to a gathering for the war-disabled.
About 15,000 French soldiers after World War I could be called gueules cassées. At first, head injuries were not considered survivable, but with advances in plastic surgery some gueules cassées could be returned to normal. Facially disfigured vets were initially denied support and veteran's benefits, but that changed later. Yves Picot founded a union for gueules cassées in 1921 that still exists today.