From left, U.S. Marine Corps Lt. Col. Keven Matthews, the commanding officer of Marine Rotational Force-Darwin, and Australian Army Brig. Gen. John Frewen, the commanding general of the 1st Brigade and the senior Australian Defense Force officer for Robertson Barracks, stand in front of U.S. Marines with Marine Rotational Force-Darwin before Frewen speaks to them about the upcoming six-month rotation, expectations and the significance of their presence at Robertson Barracks near Darwin, Australia, April 11, 2014.