11–27 Dec 1949PRC captures Chengdu,securing southwest China
18 Dec 1949PRC dissolvesEast Turkestan Rep.
Mar–May 1950PRC captures Hainan
25 Jun 1950UN demands North Koreaend its invasion of South
25 Jun 1950North Korea invadesSouth Korea
7 Jul 1950UN resolves tosupport South Korea
4 Aug–18 Sep 1950UN forces holdPusan Perimeteragainst North Korea