<P> The Korean War ( in South Korean Hangul : 한국 전쟁 ; Hanja : 韓國 戰爭 ; RR : Hanguk Jeonjaeng , `` Korean War '' ; in North Korean Chosŏn'gŭl : 조국 해방 전쟁 ; Hancha : 祖國 解放 戰爭 ; MR : Choguk haebang chǒnjaeng , `` Fatherland Liberation War '' ; 25 June 1950 -- 27 July 1953 ) began when North Korea invaded South Korea . The United Nations , with the United States as the principal force , came to the aid of South Korea . China came to the aid of North Korea , and the Soviet Union gave some assistance . </P>
<P> The Korean War ( in South Korean Hangul : 한국 전쟁 ; Hanja : 韓國 戰爭 ; RR : Hanguk Jeonjaeng , `` Korean War '' ; in North Korean Chosŏn'gŭl : 조국 해방 전쟁 ; Hancha : 祖國 解放 戰爭 ; MR : Choguk haebang chǒnjaeng , `` Fatherland Liberation War '' ; 25 June 1950 -- 27 July 1953 ) began when North Korea invaded South Korea . The United Nations , with the United States as the principal force , came to the aid of South Korea . China came to the aid of North Korea , and the Soviet Union gave some assistance . </P>
who were the main countries involved in the korean war
who were the main countries involved in the korean war
North Korea South Korea United States China Soviet Union
North Korea South Korea United States China Soviet Union