Philippine President Rodrigo Duterte once again extended the Visiting Forces Agreement (VFA) with the United States after flip-flopping on the issue twice this year. The Trump Administration missed the chance to call Duterte’s bluff and end the one-sided agreement. When the time comes, the Biden Administration shouldn’t make the same mistake. Duterte criticized the United States’ decades-long military presence in February and called for the abrogation of the VFA. The VFA has allowed U.S. troops to easily move in the Philippines for 20 years now to honor the 1951 Mutual Defense Treaty between...