Korea is the world’s only divided country. This division is an international as well as a national issue, and it has inflicted pain and suffering on the Korean people for 50 years, since the truce that suspended the Korean War was signed at Panmunjom on July 27, 1953.1 Responding to this situation of fratricide, the paper analyzes sangsaeng theology, The disproportionate human cost paid by the Korean people in family divisions, separation of friends, and deaths is a result of the ideological differences that exist between the governments of South and North Korea as well as different world powers that exert influence and pressure on these governments. Communism, imperialism, capitalism, and the military rivalry between the two Koreas are the greatest obstacles to the reunification of this nation. Moreover, the situation on the Korean peninsula has implications not only for peace in northeast Asia but also for global peace.