All Americans are familiar with the "day that will live in infamy." At 9:30 a.m. on Sunday, December 7, 1941, Pearl Harbor, the advanced base of the United States Navy's Pacific Fleet, was ablaze. It had been smashed by aircraft launched by the carriers of the Imperial Japanese Navy. All eight battleships had been sunk or badly damaged, 350 aircraft had been knocked out, and over 2,000 Americans lay dead. Indelible images of the USS Arizona exploding and the USS Oklahoma capsizing and floating upside down have been ingrained in the American conscience ever since. In less than an hour and a half the Japanese had almost wiped out America's entire naval presence in the Pacific.

Less than 24 hours earlier, Japanese and American negotiators had been continuing their diplomatic efforts to stave off conflict in the region, but as they did, President Roosevelt and his inner circle had seen intelligence reports strongly suggesting an imminent attack - though they did not know where. The U.S. rightly believed that Japan would take action to prevent the Americans from interfering with their military activities in Southeast Asia, and American military forces in the Philippines were already bracing for a potential attack. However, as the negotiations were ongoing, the powerful Japanese carrier fleet had been surging southwards through the Pacific while maintaining radio silence, preparing to strike the blow that would ignite war in an area spanning half the globe.

Posted on the other side of the world, it was early on the morning of December 8 in the Philippines when American general Douglas MacArthur received news of the Japanese attack on Pearl Harbor hours earlier. With that, it could only be a matter of time before the Japanese attacked the Philippines. Although MacArthur and Allied forces tried to hold out, they could only fight a delaying action, and the Japanese managed to subdue all resistance by the spring of 1942.