U.S. Marines with Marine Air Control Squadron (MACS)

U.S. Marines with Marine Air Control Squadron (MACS) 4, 1st Marine Aircraft Wing setup an airfield mobile tactical air navigation system at the flight line during exercise Forest Light Eastern Army at Camp Soumagahara, Gunma Prefecture, Japan, Dec. 5, 2020. Forest Light is an annual bilateral training exercise that strengthens the interoperability and readiness of the U.S. Marine Corps and Japan Ground Self-Defense Force to deter aggression and defeat any threat. This iteration is focused on seizing and defending key maritime terrain as an integrated force in support of naval operations in the defense of Japan. (U.S. Marine Corps photo by Sgt. Branden J. Bourque)