On the day Pearl Harbor was bombed on in December 1941, the American Baptist Foreign Mission and its affiliate Woman's American Baptist Foreign Mission Society had 21 missionaries in the Philippine islands. The mission works of the American Baptists had been rocked during the height of the World War II. On 15 December 1941, the two mission hospitals run by the mission on Panay – Iloilo Mission Hospital and Capiz Emmanuel Hospital, began to work in full co-operation with the United States Armed Forces. By January 1942, Manila had fallen in the hands of the Japanese Imperial Army and had become clear that they would come to Panay. The two hospitals moved to separate inland areas, the Capiz Emmanuel Hospital to Dumalag, Capiz and the Iloilo Mission Hospital to Calinog, Iloilo where, April 1942, they continued to operate under their regular missionary and Filipino staffsm drawing more heavily on the armed forces for equipment and supplies.