Broll of U.S. Marines attending a ROK Marine Corps recruit training graduation ceremony on ROK Marine Corps Base Pohang, South Korea, April 13, 2023. The ROK Marine Corps was founded in 1949, and now contains more than 28,900 Marines. As a branch of the ROK Navy, the ROK Marine Corps specializes in amphibious warfare. (U.S. Marine Corps video by Cpl. Alex Fairchild)