The Philippines has a long relationship with the United States, covering economics, security, and people-to-people relations. A mutual defense treaty between the two countries was signed in 1951, and supplemented later with the 1999 Visiting Forces Agreement and the 2016 Enhanced Defense Cooperation Agreement. The Philippines supported American policies during the Cold War and participated in the Korean and Vietnam wars. In 2003 the Philippines was designated a Major non-NATO ally.