Koren War By RIK Jan 1, 1945 Korea divided into two countries Korea Divides Jun 1, 1949 U.S. troops leave South Korea Troops Leave North Korea Period: Jun 1, 1950 to Jul 31, 1950 U.S. launches counterattack against North Korea Jun 25, 1950 North Korea Captures Seoul Seoul is Captured Sep 1, 1950 UN troops capture Seoul Seoul Captured by UN Troops Oct 7, 1950 UN troops cross 38th parallel UN Troops Cross 38th Parallel Nov 1, 1950 MacArthur leads offensive charge against Chinese troops MacArthur Leads Charge Nov 25, 1950 Chinese troops cross Yalu River Chinese Troops Cross Yalu River Apr 11, 1951 Trumam dismisses MacArthur MacArthur Fired Jul 27, 1951 Armistice ends Korean War ArmisticeArmistice