Petty Officer 1st Class Steven Maldonado and Gunnery Sgt. Javier Vega conduct a perimeter security check.
Petty Officer 1st Class Steven Maldonado and Gunnery Sgt. Javier Vega, both assigned to Naval Mobile Construction Battalion 40, conduct a perimeter security check around a new combat outpost in Diwar, Afghanistan, on Dec. 18, 2010. Active duty and reserve component Seabees assigned to Naval Mobile Construction Battalions 40 and 18 secure and fortify a combat outpost in Diwar, Afghanistan.