
1) UN police action 2) It broke out in 1950
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https://www.crosswordclues.com/clue/korean-war

The Korean War (in South Korea: 한국전쟁, Hanguk Jeonjaeng, `Korean War`; in North Korea: 조국해방전쟁, Joguk Haebang Jeonjaeng, `Fatherland Liberation War`; 25 June 1950 – 27 July 1953){refn | name = nbArmistice Agreement | group = lower-alpha | As per armistice agreement of 1953, the opposing sides had to `insure a complete cess...
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http://en.wikipedia.org/wiki/Korean_War

conflict between the Democratic People`s Republic of Korea (North Korea) and the Republic of Korea (South Korea) in which at least 2.5 million ... [35 related articles]
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http://www.britannica.com/eb/a-z/k/48

War from 1950 to 1953 between
North Korea (supported by China) and ...
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http://www.encyclo.co.uk/local/20688

[
n] - a war between North and South Korea
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http://www.webdictionary.co.uk/definition.php?query=Korean%20War
noun a war between North and South Korea; South Korea was aided by the United States and other members of the United Nations; 1950-1953
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https://www.encyclo.co.uk/local/20974
Click images to enlargeWar from 1950 to 1953 between North Korea (supported by China) and South Korea, aided by the United Nations (the troops were mainly US). North Korean forces invaded South Korea on 25 June 1950, and the Security Council of the United Nations, owing to a walk-out by the USSR, voted to oppose them....
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https://www.encyclo.co.uk/local/21221

the war, begun on June 25, 1950, between North Korea, aided by Communist China, and South Korea, aided by the United States and other United Nations members forming a United Nations armed force: truce signed July 27, 1953.
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https://www.infoplease.com/dictionary/korean-war
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