Korean War By nicolechua Jan 1, 1949 Fall of China to Communism and Soviet successful testing of the atomic bomb these made Stalin more confident and willing to challenge the US Mar 15, 1949 MacArthur's assessment of the ROK army Dec 31, 1949 Stalin assisted Kim by providing military aid to the North Koreans Jan 1, 1950 Dean Acheson's defense perimeter speech said that they would omit South Korea from a list of countries that the US would automatically protect in the event of aggression Jan 1, 1950 Stalin disposed when Kim proposed Jul 1, 1951 Peace talks Mar 1, 1953 Death of Stalin Jun 15, 1953 Release of POWs