이것이 전쟁이다! 고지전 : 북한의 남침과 낙동강 전선 North Korea Invasion and Nak Dong River ① North Korean Invasion ② Seoul conquered ③ North Korean army advanced to Nak Dong River line ④ Nak Dong Defense Line by ROKA and UN forces(Walker Line) ⑤ South Korea Government moved to Busan via Daegu 부록(Appendix) l 209
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