190605-N-SS370-0028 SANTA RITA, Guam (June 5, 2019) Republic of Korea sailors aboard the Sohn Wonyil class diesel-electric submarine ROKS Yun Bonggil (SS 077) prepare to conduct line handling duties as the submarine arrives at Naval Base Guam, June 5, 2019. Naval Base Guam is strategically located to support all submarines deployed to 7th Fleet and is home port to four Los Angeles-class attack submarines. (U.S. Navy photo by Mass Communication Specialist Seaman Chase Stephens /Released)