Sgt. Maj. David Hanlon, the support operations sergeant major with the 364th Expeditionary Sustainment Command, inserts a railing onto an expanding van at Jump Tactical Operations Center Coyote in Fort Knox, Ky., March 22, 2018, during Combined Situational Training Exercise - Bridge. The jump TOC demonstrated the 364th ESC's capability to perform sustainment operations from a mobile environment.