Herbert Adams Gibbons
In the early 1930s, Gibbons argued that an American withdrawal from the Philippines would be futile, because Japan would immediately colonize the country if the United States were to pull out. In 1931, in a speech in Manila, Gibbons referred to the Philippine calls for independence as "claptrap." He said that if the United States were to withdraw, then it might as well negotiate with the League of Nations to hand the Philippines over to Japan as a mandate. The American business community roundly praised Gibbons' speech. However, Philippine nationalist leaders attacked Gibbons, saying that he was raising the "Japanese bogy" as a hurdle to Philippine independence. (Ultimately, the United States did not grant Philippine independence until 1946, after Japan was no longer a military threat to the former colony.)
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.