Harry S. Truman

President Roosevelt died, and Vice-President Harry S. Truman became President of the US.

In what has become known as the Nuremberg trials, leaders from the Allied countries (particularly the Big Four: Churchill , De Gaulle , Stalin , and Truman , who had succeeded to Roosevelt the...

The US dropped the first atomic bomb on Hiroshima: by early twenty-first century the best estimate of those killed on the spot stood at approaching 140,000 people, plus many thousands more with obvious, serious injury.

With Russia exerting pressure on both Turkey and Greece, US President Harry S. Truman enunciated the Truman Doctrine of support for free peoples against takeover or subversion.

North Korea's attack on South Korea began the Korean War.

In the USA the Internal Security Act (also known as the McCarran Act or McCarran Wood Act from the chairman of the Un-American Activities Committee ) placed various legal restrictions on Communist Party membership and members.

British Prime Minister Clement Attlee flew to Washington, DC, apparently seeking to deflect US President Harry S. Truman from a possible plan to use nuclear weapons against CommunistNorth Korea.