Attitude of the U.S. Before Pearl Harbor. Public opinion in the United States was divided. Although most Americans favored the Allied cause, there was strong opposition to even indirect involvement in the war. The German-American Bund and the America First movement were especially active in opposing aid to the Allies. The American Communists also opposed aid—until Germany attacked the Soviet Union; then they demanded immediate intervention.
In 1939, a group of scientists, many having recently arrived in the United States after fleeing Nazi persecution in Germany, informed government officials that recent experiments conducted in Germany had demonstrated the feasibility of building an atomic weapon.
This World War II timeline highlights key events from June 1943-December 1943. Operation Pointblank was launched in June of 1943, and focused on bombing the source of German airpower. Get details on the Allies' bombing of Nazi Germany, and more.