President Harry S. Truman and Secretary of State James F. Byrnes departed for Europe aboard the cruiser USS Augusta on July 7, 1945. During the voyage, Truman enjoyed himself by taking brisk walks on deck, chatting with crew members, playing poker, and watching evening movies in Bvrnes's cabin. He conferred daily with the secretary and various advisers and studied the position papers prepared on issues to be discussed at the forthcoming conference. Succeeding cables described more graphically the explosion's effects. In recording Truman's responses to the information as it came in, Stimson used phrases such as "highly delighted," "greatly reinforced," "tremendously pepped up," and "he said it gave him an entirely new feeling of confidence." The fact is that Truman would have been "tremendously pepped up" regardless of the state of US-Soviet relations by a development that made it likely the war could be ended without an invasion of Japan.