June 5, 2019, Santa Rita, Guam, United States: Republic of Korea sailors aboard the Sohn Wonyil class diesel-electric submarine ROKS Yun Bonggil prepare for docking at Naval Base Guam June 5, 2019 in Santa Rita, Guam. Naval Base Guam is home to four Los Angeles-class attack submarines in the 7th Fleet and supports allied operations in Asia.
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