A basic military agreement of 1947 granted the United States a 99-year lease for a number of Philippine military and naval bases in which the U.S. authorities had virtual territorial rights.  In August 1951, a Mutual Defence Treaty (TDM) was signed between representatives of the Philippines and the United States. The comprehensive agreement contained eight articles and stated that the two nations would have supported each other if the Philippines or the United States were attacked by an outside party. An amendment to the basic agreement in 1966 reduced his term from 99 years to 25 years.  In 1979, after two years of negotiations, the basic agreement was renewed with some modifications.  Resistance to the Us-Philippine Mutual Defense Treaty has its periods on both sides of the Pacific. Given the longevity of the U.S. military presence in the Philippines the opposition to the U.S. military presence in the Philippines and the treaty itself began in the 1980s with the escalation of tensions around American political decisions and their consequences.  In the late 1970s and 1980s, the anti-US atmosphere increased after the U.S. military`s accusations and increasing assaults on Filipino men and women.
Nightclubs and social hotspots around Clark Air Force Base and Naval Base Subic Bay have become hot spots in accusations of attacks by U.S. service providers on local Filipinos.  Political tensions continue to rise. In 1991, the 1947 basic military agreement ended and the bush administration of George H. W. Bush of the U.S. and the Corazon Aquino Administration of the Philippines were in talks to renew the agreement. A new contract, the “RP-US contract of friendship, cooperation and security”, has been signed for the renewal of the subic berry lease.   Anti-US sentiment in the Philippines continued to grow and was reflected in the election of the Philippine Senate. The majority of the Philippine Senate opposed the renewal. On September 13, 1991, the Philippine Senate voted against ratification of the new treaty.  As a result, the last U.S.
military personnel in the Philippines were withdrawn from bases on November 24, 1992. The Philippines, a former U.S. territory that gained independence in 1946, has long regarded Washington as its most powerful ally.