Santo Tomas Internment Camp, also known as the Manila Internment Camp, was the largest of several camps in the Philippines in which the Japanese interned enemy civilians, mostly Americans, in World War II. The campus of the University of Santo Tomas in Manila was utilized for the camp which housed more than 3,000 internees from January 1942 until February 1945. Conditions for the internees deteriorated during the war and by the time of the liberation of the camp by the U.S. Army many of the internees were near death from lack of food.
Japan attacked the Philippines on December 8, 1941, the same day as its raid on Pearl Harbor (on the Asian side of the International Date Line). Despite several hours of anticipation that a Japanese attack was imminent, most of the American air force was caught on the ground and destroyed by Japanese bombers. On the same day, the Japanese invaded several locations in northern Luzon and advanced rapidly southward toward Manila, capital and largest city of the Philippines. The U.S. army, consisting of about 20,000 Americans and 80,000 Filipinos, retreated onto the Bataan Peninsula. On December 26, 1941, Manila was declared an open city and all American military forces abandoned the city leaving civilians behind. On January 2, 1942, Japanese forces entered and occupied Manila. They ordered all Americans and British citizens to remain in their homes until they could be registered. On January 5, the Japanese published a warning in the Manila newspapers. "Any one who inflicts, or attempts to inflict, an injury upon Japanese soldiers or individuals shall be shot to death." But if the assailant could not be found the Japanese "would hold ten influential persons as hostages."
The last American forces in the Philippines surrendered on May 6, 1942, except for a few men who took to the hills to initiate guerrilla warfare against the Japanese occupiers. It was the worst defeat of the United States in World War II.
Over a period of several days, the Japanese occupiers of Manila collected all enemy aliens in Manila and transported them to the University of Santo Tomas, a walled compound 19.5 hectares (48 acres) in size. Thousands of people, mostly Americans and British, staked out living and sleeping quarters for themselves and their families in the buildings of the University. The Japanese mostly let the foreigners fend for themselves except for appointing room monitors and ordering a 7:30 p.m. roll call every night. The Japanese selected a business executive named Earl Carroll as head of the internee government and he selected five, later nine, men he knew to serve as an executive committee. They appointed a British missionary who had lived in Japan, Ernest Stanley, as interpreter. Santo Tomas quickly became a "miniature city." The internees created several committees to manage affairs, including a police force, set up a hospital with the abundant medical personnel available, and began providing morning and evening meals to more than 1,000 internees who did not have food or money to buy it.