Sgt. James Higgins Marine Medium Helicopter Squadron 365 (Reinforced) crew chief keeps watch for enemy activity aboard a CH-46E Sea Knight during a raid exercise Mar. 1. As the Air Combat Element of the 24th Marine Expeditionary Unit, HMM-365 (Rein.) performed the raid along with Marines from Battalion Landing Team 1st Battalion, 8th Marine Regiment, Alpha Company during their Training in an Urban Environment exercise held in Norfolk, Va.