Full text of the secret 1950 report of Truman's National Security Council laying out a new, more aggressive strategy for waging Cold War against Communist forces abroad.
The US State Department provides a solid, brief summary of NSC-68 and its significance.
27 June 1950 resolution of the United Nations Security Council authorizing international assistance to South Korea and defining North Korea as the aggressor in the two-day-old war.
President Harry Truman's statement to the American people on committing troops to the Korean War, 27 June 1950
Accounts of President Truman's fateful meeting with General MacArthur at Wake Island, 15 October 1950