On December 7, 1941, the Imperial Japanese Navy led a surprise military strike against the American naval base at Pearl Harbor, Hawaii. The following day, President Franklin Delano Roosevelt declared war against Japan, thus thrusting the United States fully into World War II. After the attack on Pearl Harbor, thousands of American men enlisted in the various branches of the armed forces to help their country in the fight against the Axis Powers. Many of these were established Hollywood stars, others became recognizable movie stars in the post-war period. Here are five male actors who served in World War II before they were famous. 1. Paul Newman (1925-2008) After graduating from high school in June 1943, Newman volunteered for the U.S. Navy Air Corps and enrolled in the V-12 pilot training programme at Yale University. When his colourblindess was discovered, he was sent to a traditional boot camp in Newport, Rhode Island, and received training as a rear-seat radioman and gunner in tor