Philippine resistance against Japan
During the Japanese occupation of the islands in World War II, there was an extensive Philippine resistance movement (Filipino: Kilusan ng Paglaban sa Pilipinas), which opposed the Japanese and their collaborators with active underground and guerrilla activity that increased over the years. Fighting the guerrillas – apart from the Japanese regular forces – were a Japanese-formed Bureau of Constabulary (later taking the name of the old Philippine Constabulary during the Second Republic), the Kempeitai (the Japanese military police), and the Makapili (Filipinos fighting for the Japanese).
Source: Wikipedia — Philippine resistance against Japan (CC BY-SA 4.0)