Philippine–American War
In 1902, the United States Congress passed the Philippine Organic Act, which provided for the creation of the Philippine Assembly, with members to be elected by Filipino males. (Women did not have suffrage in the US or the Philippines.) This act was superseded by the 1916 Philippine Autonomy Act, which contained the first formal and official declaration of the United States government's commitment to eventually grant independence to the Philippines. The 1934 Philippine Independence Act created the Commonwealth of the Philippines the following year, a limited form of independence, and established a process ending in Philippine independence (originally scheduled for 1944, but interrupted and delayed by World War II). The United States granted independence in 1946, following World War II and the Japanese occupation of the Philippines, through the Treaty of Manila.
Cordillera Central (Luzon)
From 1936 to 1946, the Philippines was granted domestic self-administration under the Commonwealth of the Philippines as a transitional period for complete independence. From 1941 to 1945, the country fell under Japanese rule and was liberated by military forces of the United States of America, and dare inside by the combined forces of the Allied Philippine Commonwealth military forces and local Igorot and Cordilleran guerrilla forces in Northern Luzon. The US subsequently recognized Philippine independence on July 4, 1946.