U.S. Marines assigned to 2nd Low Altitude Air Defense

U.S. Marines assigned to 2nd Low Altitude Air Defense (LAAD) Battalion, provide security during a field training exercise at the National Training Center (NTC) in Fort Irwin, Calif., Jan. 12, 2018. NTC 18-03 is a simulated combat training exercise in which Marines with 2nd LAAD conducted Ground Based Air Defense in defense of Soldiers with 1st Squadron, 11th Armored Cavalry Regiment. (U.S. Marine Corps photo by Cpl. Koby I. Saunders)