In early July 1944, less than a month after the Invasion of Normandy by Allied forces, Robinson traveled to Normandy to entertain the troops, becoming the first movie star to go there for the USO. He personally donated $100,000 ($1,500,000 in 2015 dollars) to the USO. After returning to the U.S. he continued his active involvement in the war effort by going to shipyards and defense plants in order to inspire workers, in addition to appearing at rallies in order to help sell war bonds. After the Nazi invasion of the Soviet Union, while he was not a supporter of Communism, he appeared at Soviet war relief rallies in order to give moral aid to America's new ally, which he said could join "together in their hatred of Hitlerism."