Philippine Declaration of Independence
Following the end of World War II, the United States granted independence to the Philippines on 4 July 1946 via the Treaty of Manila. July 4 was observed in the Philippines as "Independence Day" until August 4, 1964 when, upon the advice of historians and the urging of nationalists, President Diosdado Macapagal signed into law Republic Act No. 4166 designating June 12 as the country's "Independence Day". June 12 had previously been observed as "Flag Day" and many government buildings are urged to display the Philippine Flag in their offices.
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.