<a href="https://en.wikipedia.org/wiki/Korean_War" id="mwxg" rel="mw:WikiLink" title="Korean War">Korean War</a>: <a href="https://en.wikipedia.org/wiki/Battle_of_Chipyong-ni" id="mwxw" rel="mw:WikiLink" title="Battle of Chipyong-ni">Battle of Chipyong-ni</a>, which represented the "high-water mark" of the Chinese incursion into South Korea, commences.