In 1941, 1,800 men from the 200th and 515th Coast Artillery Regiment, mostly men from New Mexico, deployed to the Philippines to partake in war simulations. Within 3 months the Japanese had bombed Pearl Harbor and invaded the Philippines. After four months of fierce fighting, the Japanese broke through Allied lines. This led to the eventual fall of Bataan peninsula and the death march to confinement camps. Of the 1,816 men 200th & 515th Coast Artillery men identified, 829 died in battle, while prisoners, or immediately after liberation. There were 987 survivors.