Within hours of the Japanese attack on Pearl Harbor, bombs rained down on U.S. and Filipino forces in the Philippines. After months of vicious fighting, Allied forces surrendered on the island only to be met with a brutal march to P.O.W. camps dotted across the islands. Thousands died on the marches, before reaching the P.O.W. camps where countless more died. The surrender of the Philippines, now almost forgotten in U.S. history, is commemorated in the Philippines every year.