US Navy (USN) Storekeeper Second Class (SK2) Anthony Kazzi (left), assigned to the Naval Mobile Construction Battalion 23 (NMCB-23), instructs fellow Seabees how to fire their 7.62 mm M240B machine gun during training at Camp Shelby, Mississippi (MS). NMCB's provide responsive military construction support to US and other military forces during military and peacetime operations. The NMCB 23 is a reserve unit headquartered at Fort Belvoir, Virginia (VA)