191212-N-JS726-0025 PENSACOLA, Fla. (Dec. 12, 2019) Vice Adm. Mary Jackson, commander, Navy Installations Command, meets with Naval Security Forces personnel at Naval Air Station Pensacola. The NSF personnel were first on scene during the Dec. 6, 2019 active shooter incident on base. (US Navy photo by Chief Mass Communication Specialist David Holmes/Released)