M1A1 Main Battle Tanks with Company A, 1st Tank Battalion, 1st Marine Division align themselves in order to provide fire support for British Royal Marines with 42 Commando Group during Exercise Black Alligator 2015 aboard Marine Air Ground Combat Center Twentynine Palms, Calif., Sept. 30, 2015. The exercise gave 1st Tanks an opportunity to hone and showcase their support capabilities, while building upon an already established relationship with the Royal Marines. (U.S.Marine Corps photo by Cpl. Demetrius Morgan/RELEASED) - M1A1 Main Battle Tanks with Company A, 1st Tank Battalion, 1st Marine Division align themselves in order to provide fire support for British Royal Marines with 42 Commando Group during Exercise Black Alligator 2015 aboard Marine Air Ground Combat Center Twentynine Palms, Calif., Sept. 30, 2015. The exercise gave 1st Tanks an opportunity to hone and showcase their support capabilities, while building upon an already established relationship with the Royal Marines. (U.S.Marine Corps photo by Cpl. Demetrius Morgan/RELEASED)