Airmen from the 108th Security Forces Squadron prepare to enter a building during an assault on opposing forces at an urban terrain facility at Joint Base McGuire-Dix-Lakehurst, N.J., Sept. 14, 2014. The Security Forces Airmen practiced land navigation, weapons proficiency and squad maneuvering tactics during September's unit training assembly. (U.S. Air National Guard photo by Master Sgt. Mark C. Olsen/Released)