GM55

**GM55**, designated as Groupement Mobile 55, was a mobile infantry unit formed by the French Army during the First Indochina War (1946–1954). Established in the early 1950s, GM55 was part of a series of Groupements Mobiles—regimental-sized, motorized task forces modeled on French armored cavalry groups—designed to enhance operational mobility against Viet Minh guerrillas. The unit participated in several major operations, including convoy escorts, search-and-destroy missions, and the defense of key outposts in northern Vietnam. GM55, like many similar units, faced intense combat and suffered heavy losses, particularly during the climactic battles leading up to the fall of Dien Bien Phu in 1954.