Marines with 1st Battalion, 4th Marine Regiment, Marine

Marines with 1st Battalion, 4th Marine Regiment, Marine Rotational Force – Darwin, play a friendly game of basketball against soldiers with the Australian Army, Australian Defence Force, April 29 at Robertson Barracks, Palmerston, Northern Territory, Australia. Simple team building exercises like this show how the Marine Corps and the ADF exercise their interoperability. U.S. military-ADF relations date back to the early 20th century and include significant conflicts like World Wars I and II, Korea, Vietnam, Iraq and Afghanistan. (U.S. Marine Corps photo by Cpl. Angel Serna/Released)