began on April 9, 1942, was the forcible transfer by the Imperial Japanese Army of 60,000-80,000 Filipino and American prisoners of war after the three-month Battle of Bataan in the Philippines during World War II. All told, approximately 2,500-10,000 Filipino and 100-650 American prisoners of war died before they could reach their destination at Camp O'Donnell. The reported death tolls vary, especially amongst Filipino POWs, because historians cannot determine how many prisoners blended in with the civilian population and escaped. The march went from Mariveles, Bataan, to San Fernando, Pampanga. From San Fernando, survivors were loaded to a box train and they were brought to Camp O'Donnell in Capas, Tarlac.