Maj. Gen. Duane A Gamble, Commander of 22st Theater

Maj. Gen. Duane A Gamble, Commander of 22st Theater Sustainment Command, engages targets with the M2 .50-caliber machine gun during the convoy live fire exercise as part of the Vanguard Proof at Pocek Range in Postonja, Slovenia, Mar. 22, 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)