Maj. Gen. Duane A Gamble, Commander of 21st Theater

Maj. Gen. Duane A Gamble, Commander of 21st Theater Sustainment Command, participates in 702nd Ordnance Company EODs improvise explosive device training with U.S. Army soldiers, assigned to the 16th Sustainment Brigade, as part of a visit during 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)