The Korean War turned on a landing timed to a nine-metre tide

Inchon had one of the highest tidal ranges on Earth, exposing miles of mud at low water and leaving only a few hours a month when large ships could land troops. General MacArthur pushed the September 1950 assault through the Joint Chiefs' objections anyway. It worked: UN forces retook Seoul within two weeks and cut off North Korean forces streaming south.

— David Halberstam, The Coldest Winter: America and the Korean War — 2007, chapters on the Inchon landing
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