The Philippines-United States Visiting Forces Agreement, sometimes also the EU Visiting Forces Agreement, is a bilateral agreement on visiting forces between the Philippines and the United States, consisting of two separate documents. The first of these documents is usually referred to as “VFA” or “VFA-1″ and the second as “VFA-2” or “counter-agreement”.  A visiting force agreement is a version of a status of force agreement that applies only to troops temporarily in a country. The agreements entered into force on 27 May 1999 following ratification by the Senate of the Philippines.  ,  The U.S. government considers these documents to be executive agreements that are not subject to approval by the U.S. Senate.   On February 11, Philippine President Rodrigo Duterte announced that Manila would denounce the United Nations Visiting Forces in the Philippines (VFA) Agreement, an agreement that authorizes, among others, the United States. Forces present in the Philippines. The Philippines is a contractual ally of the United States, with several military agreements that depend on the VFA, which provides the legal framework for washington`s troops to operate on a rotating base in the Southeast Asian nation. The U.S.
has used the deal at least twice to keep accused military personnel under U.S. jurisdiction.   On January 18, 2006, the U.S. military arrested four soldiers accused of rape while on their way to Subic Bay during their trial in a Philippine court.  They were detained by U.S. officials at the U.S. Embassy in Manila. .