U.S. Army Specialist Ray Kankoski conducts march order emplacement and system validation for the MIM-104 Patriot missile battery during Juniper Cobra, Feb. 23, 2018. Juniper Cobra 18 is a joint U.S.-Israeli ballistic missile defense exercise that uses computer simulations to train forces and enhance interoperability. Air Force photo by Tech. Sgt. Matthew Plew