U.S. Senior Airman Dylan Williams a material management

U.S. Senior Airman Dylan Williams a material management personnel with the 139th Logistics Readiness Squadron, Missouri Air National Guard performs a gas mask leakage test during a deployment field training at Ramstein Air Base, Germany, April 6, 2016. Over 40 Airmen with 139 LRS were working alongside their counterparts from the 86th Air Mobility Wing to enhance their skill levels within their individual career fields. Ramstein Air Base is home to the 86th, 435th and 721st Air Mobility Wings which support three theaters: United States Africa Command, Central Command, and European Command. (Missouri National Guard photo by Staff Sgt. Patrick P. Evenson)