How did U.S. foreign policy change immediately after Pearl Harbor?

Question

Eli Anderson · Accepted Answer

It convinced Congress to carry out war against Germany and Japan which were both part of the Axis.

Franklin Delano Roosevelt assured Churchill that he would support them should a conflict arise and expressed his willingness to fight Hitler in Europe. Conservatives were isolationists at the time, and Congress remained hesitant to allow the United States to fight in World War II. Following World War I, the United States withdrew from the international arena and reverted to isolationism in the 1920s and 1930s. However, the attack on Pearl Harbor would propel the country out of its isolation and require it to become involved in international affairs.

Adeline Acosta · Answer

undefined Immediately after the attack on Pearl Harbor, the United States shifted from a policy of neutrality to active involvement in World War II. The attack prompted the United States to declare war on Japan on December 8, 1941. This marked the entry of the United States into World War II, aligning itself with the Allies against the Axis powers. Following the declaration of war on Japan, Germany and Italy, as Axis powers, declared war on the United States, further solidifying the country's commitment to the conflict. As a result, U.S. foreign policy became focused on mobilizing resources, military forces, and diplomatic efforts to support the war effort and defeat the Axis powers.