Expansion of the Cold War By hamidcoutinho Aug 10, 1945 Atomic Bombs dropped on Japan Aug 28, 1945 Russian troops reach 38th parallel Sep 9, 1948 DPRK proclaimed Apr 4, 1949 NATO created May 30, 1950 Conservatives ousted by moderates in Elections Jun 25, 1950 North Korea crosses 38th parallel Jun 27, 1950 US sends support to South Korea Sep 15, 1950 US forces pushed back to end of Korean peninsula Sep 29, 1950 Syngman Rhee's gov restored in Seoul Oct 9, 1950 US forces cross 38th parallel Nov 30, 1950 US considers using atomic bomb Feb 1, 1951 Operation killer launched by US Apr 5, 1951 Truman dismisses MacArthur Jul 27, 1953 Peace treaty settled and 38th parallel reset as boundary b/w 2 peninsulas