U.S. Marine Corps Corporal Taylor Butler (right) and

U.S. Marine Corps Corporal Taylor Butler (right) and Australian Sapper Jarrod O’Brien (left) lay brick for an improvised explosive device training lane May 12 at Robertson Barracks, Palmerston, Northern Territory, Australia. Marine Rotational Force – Darwin Marines and Australian soldiers use the training lanes to detect IEDs and enhance basic combat engineer skills. The rotational deployment in Darwin enables Marines to more effectively train, exercise and operate with partners, enhances regional security and builds capacity to respond more rapidly to natural disasters and crises throughout that region. Butler is a combat engineer with Combat Logistics Detachment 1, MRF-D. O’Brien is a combat engineer with 1st Combat Engineer Regiment, Australian Army, Australian Defence Force. (U.S. Marine Corps photo by Lance Cpl. Kathryn Howard/Released)