北 "첫 전술핵공격잠수함 건조...핵추진잠수함 도입 계획" / YTN YTN 0 57 2023.09.08 09:52 https://www.youtube.com/watch?v=1bHCKNEaMww + 11 https://www.youtube.com/feeds/videos.xml?channel_id=UChlgI3UHCOnwUGzWz… + 9 北 "첫 전술핵공격잠수함 건조...핵추진잠수함 도입 계획" / YTN