Lt. Col. Brian Ketz (left), Commander of 16th Special

Lt. Col. Brian Ketz (left), Commander of 16th Special Troops Battialion ,16th Sustainment Brigade, welcomes Col. Michelle M.T. Letcher (center), Commander of 16th Sustainment Brigade, and Command Sgt. Maj. Frank M. Graham Jr. (right), command sergeant major of 16th Sustainment Brigade, as part of a visit during Exercise Vanguard Proof at Pocek Range in Postonja, Slovenia, Mar. 21, 2017. Units in the battalion have come together from four separate bases in Germany and Italy to conduct this training event. Exercise Vanguard Proof is a combined exercise between the 16th Sustainment Brigade and the Slovene Armed Forces focused on enhancing interoperability NATO operational standards and developing individual technical skills. (U.S. Army photo by Visual Information Specialist Paolo Bovo/Released)