ROKS_Cheonghaejin_(ASR-21)
ROKS Cheonghaejin (ASR-21)
Cheonghaejin-class submarine rescue ship
ROKS Cheonghaejin (ASR-21) is the only ship of the Cheonghaejin-class submarine rescue ship in the Republic of Korea Navy. She is named after the military headquarter, Cheonghaejin.[1]