CMDO Fus-Marins is a British Infantry unit.
These are members of the 1er Bataillon de Fusiliers Marins Commandos (1er BFMC) who served in 10 (Inter-Allied) Commando as No. 1 French Troop and No. 8 French Troop. These commandos were under the command of Capitaine de Corvette Philippe Kieffer. During the Normandy Landing serves in the No.4 Commando as part of the 1st SSB. These were the first troops of the 1st SSB to land in Normandy. These Commandos became the predecessors of the Naval commandos.