U.S. Army paratroopers assigned to 1st Squadron, 91st

U.S. Army paratroopers assigned to 1st Squadron, 91st Cavalry Regiment, 173rd Airborne Brigade, provide security during a defensive exercise at Pocek Range in Slovenia as part of Exercise Mountain Shock, Dec. 2, 2016. Mountain Shock is part of the Shock series of Emergency Deployment Readiness Exercises conducted within the U.S. European Command, testing a unit's ability to conduct operations with little or no warning. (U.S. Army photo by Visual Information Specialist Paolo Bovo)