An MH-60R maritime operations helicopter from the Korean Navy’s 1st Fleet conducts deck landing and takeoff training aboard Korea Coast Guard vessel 3018 in waters off the East Coast on June 3. Headquartered in Donghae, Gangwon, the 1st Fleet is responsible for defending Korea’s eastern maritime sector. The Navy operates three regional fleets, with the 2nd Fleet covering western waters and the 3rd Fleet overseeing southern waters and areas around Jeju Island. [ROK NAVY 1ST FLEET COMMAND/YONHAP]