Truman approves use of Atom bomb

25th July 1945: The US President learns that "we have discovered the most terrible bomb in the history of the world"

The Little Boy Atomic bomb was now en route to the USAAF base on Tinian in the Pacific, where practice bomb drops from B-29 bombers using ‘pre-assemblies’ began on the 23rd July.

The death of President Roosevelt catapulted Harry S. Truman into a position of immense responsibility, for which he had little preparation. He had not been privy to the work of …