 Nyorai kuenderera mberi kweiyi ndima - Mushure mekutanga kweHondo yeKorea musi wa25 Chikumi 1950, Kim akava mutungamiri weI Corps. Mukati meHondo Yokutanga yeSeoul, I Corps yakabata chinzvimbo paKumchon, North Hwanghae, kuchamhembe kweUijeongbu. Paakangoziva nezvekutora kweSeoul neNorth Korea musi wa28 Chikumi, Kim akaita kuti mauto ake adzokere kumahombekombe ekumaodzanyemba erwizi rweHan ndokugadzira mutsetse wekudzivirira, wavakakwanisa kubata kwemazuva matanhatu kusvika musi wa3 Chikunguru apo North Korea yakanga yapora zvakakwana kubva mukuparadzwa kweHangang Bridge kuti itange kutumira matangi kuyambuka rwizi. Munyori wenhau dzakaitika Jongsuk Chay akati nguva yakawanikwa nebasa iri yakaita kuti Republic of Korea isaparadzwe nechiKomonisiti. Kim akapfuurira kurwisana muHondo yePusan Perimeter gare gare gore iroro. Zvisinei, kunetsana kwake naPurezidhendi Syngman Rhee nevakuru vemauto eAmerica kwakatungamirira kukubviswa kwake muna March 1951. 