U.S. Soldiers assigned to Blackfoot Troop, 5th Squadron,

U.S. Soldiers assigned to Blackfoot Troop, 5th Squadron, 4th Cavalry Regiment, 2nd Armored Brigade Combat Team, 1st Infantry Division, check and tighten bolts on the tracks before movement, Grafenwoehr, Germany, April 22, 2018. The Joint Warfighting Assessment (JWA) helps the Army evaluate emerging concepts, integrate new technologies, and promote interoperability within the Army, with other services, U.S. allies, and partners. JWA is the only exercise venue assessing 27 concepts and capabilities while aligning with U.S. Army Europe Readiness and other component exercises such as Combined Resolve X and the Air Force's Blue Flag 18 with a focus on a ready, interoperable Joint Force capable of accomplishing the mission and overmatching current and future enemies across the range of military operations. (U.S. Army photo by Staff Sgt. Kalie Frantz)