Marine Corps Sgt. Aaron Redding, a generator mechanic assigned to Marine Air Support Squadron 2, briefs his team on range safety during a live-fire range exercise during Midori Guardian 17 in South Korea, Oct. 10, 2017. MASS-2 is with Marine Air Control Group 18, 1st Marine Aircraft Wing. Midori Guardian aims at enhancing squadron readiness while in a field environment. Marine Corps photo by Sgt. Laura Gauna