160423-N-HD670-102 FORT HUNTER LIGGETT, Calif. (April 23, 2016) - Seabees, assigned to Naval Mobile Construction Battalion (NMCB) 5, take cover while working on a Mabey johnson Bridge during a simulated attack on their project site during the battalion’s Field Training Exercise (FTX). The FTX prepares and tests the battalion's ability to enter hostile locations, build assigned construction projects and defend against enemy attacks using realistic scenarios while being evaluated by NCG 1. (U.S. Navy photo by Utilitiesman 3rd Class Stephen Sisler/Released)