U.S. Marines march on a beach with troops from Tonga and New Zealand and French service members from New Caledonia during their culminating event for Exercise Tafakula on Tongatapu Island, Tonga, Sept. 9, 2015. The Marines are with Bravo Company, 1st Battalion, 4th Marine Regiment, Marine Rotational Force–Darwin. U.S. Marine Corps photo by Cpl. Angel Serna