A U.S. Marine with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa provides security during quick-response training aboard Naval Station Rota, Spain, January 23, 2016. The alert force tested the unit’s capabilities by simulating the procedures of reacting to a time-constrained, crisis-response mission. (U.S. Marine Corps photo by Sgt. Tia Nagle)

U.S. Marines with the Ground Combat Element, Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa conduct an alert-force drill aboard Naval Station Rota, Spain. SPMAGTF-CR-AF is a self-sustaining crisis-response force prepared for the protection of American personnel and facilities on the African continent when directed by U.S. Africa Command. (U.S. Marine Corps photo by Sgt. Tia Nagle)

U.S. Marine Cpl. Kyle Maurer, machine gunner with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, participates in an alert-force drill aboard Naval Station Rota, Spain, January 23, 2016. The alert force tested the unit’s capabilities by simulating the procedures of reacting to a time-constrained, crisis-response mission. (U.S. Marine Corps photo by Sgt. Tia Nagle)

U.S. Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa extract a simulated casualty during quick-response training aboard Naval Station Rota, Spain, January 23, 2016. The alert force tested the unit’s capabilities by simulating the procedures of reacting to a time-constrained, crisis-response mission. (U.S. Marine Corps photo by Sgt. Tia Nagle)

Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa conducted quick-response training to test the unit’s capabilities at Naval Station Rota, Spain, Jan. 23, 2016.

Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa extract a simulated downed pilot during a tactical recovery of aircraft and personnel exercise aboard Naval Station Rota, Spain, August 3. The training allowed Marines to test their ability to rapidly launch and recover a simulated downed pilot. (U.S. Marine Corps photo by Staff Sgt. Vitaliy Rusavskiy/Released)