Threatened with an American embargo, Japan organized a sturdy plan of attack to protect their supply and communication lines, as well as send a message to the United States. December 7, 1941 began their perfectly executed plan starting with the attack on Pearl Harbor that severely wounded the U.S Navy. As Japan steamrolled through the Pacific Island, the U.S held on to their territory on Luzon in the Philippines… but not for long. Without support from already warring Allies caused large American casualties and forced the Marines to retreat and regroup, but Japan’s early success would not last forever.