160421-N-HD670-522 FORT HUNTER LIGGETT, Calif. (April 21, 2016) - Seabees, assigned to Naval Mobile Construction Battalion (NMCB) 5, raise a timber watchtower 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)