U.S. Marines with the Ground Combat Element, Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, run toward an MV-22B Osprey after recovering a simulated casualty during an alert-force drill at Naval Station Rota, Spain, January 23, 2016. 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. - U.S. Marines with the Ground Combat Element, Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, run toward an MV-22B Osprey after recovering a simulated casualty during an alert-force drill at Naval Station Rota, Spain, January 23, 2016. 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.