G.R. No. 138570 , 138572, 138587, 138680, 138698; October 10, 2000
BAYAN, et al., PHILCONSA, et al., TEOFISTO T. GUINGONA, JR., et al., INTEGRATED BAR OF THE PHILIPPINES, and JOVITO R. SALONGA, et al., petitioners, vs. EXECUTIVE SECRETARY RONALDO ZAMORA, et al., respondents.

FACTS

The antecedents involve the Visiting Forces Agreement (VFA) between the Republic of the Philippines and the United States. Following the expiration of the RP-US Military Bases Agreement in 1991 and the Senate’s rejection of a treaty extending the US military presence, periodic military exercises were suspended. The defense relationship continued under the 1951 Mutual Defense Treaty. Negotiations for the VFA culminated in its signing on February 10, 1998. President Joseph Estrada ratified the VFA and transmitted it to the Philippine Senate for concurrence under Section 21, Article VII of the Constitution . After committee hearings and debates, the Senate adopted Resolution No. 18 on May 27, 1999, expressing its concurrence by a two-thirds vote. The VFA entered into force on June 1, 1999.
Multiple petitions were filed assailing the constitutionality of the VFA. The petitioners, comprising various organizations, legislators, and citizens, argued that the VFA, as an international agreement involving the presence of foreign military forces, is a treaty that requires ratification by the Senate. They contended that the Senate’s concurrence was invalid because the VFA allegedly derogates Philippine sovereignty, violates constitutional provisions on national sovereignty and territorial integrity, and was not duly concurred in by the Senate as it failed to meet the required two-thirds vote. They sought to nullify the VFA and prohibit its implementation.

ISSUE

The principal issue is whether the VFA is unconstitutional and invalid for failing to meet the requirements for a valid treaty under the Philippine Constitution.

RULING

The Supreme Court dismissed the petitions and upheld the constitutionality of the VFA. The Court ruled that the VFA is a valid and binding international agreement. The legal logic is anchored on the political question doctrine and the separation of powers. The Court emphasized that the determination of whether an international agreement requires Senate concurrence is primarily a political question, the resolution of which is vested in the Executive and Legislative branches. The President, as the chief architect of foreign policy, negotiated and ratified the VFA. The Senate, in the exercise of its constitutional power, scrutinized the agreement and gave its concurrence through Senate Resolution No. 18. The Court found that the Senate’s concurrence was made with full awareness of the VFA’s provisions and implications, and the recorded vote met the constitutional requirement. The Court deferred to the wisdom of the political branches on matters of foreign policy and military strategy, stating that it is not its function to review the merits of such policy decisions absent a clear showing of grave abuse of discretion. The VFA, as an instrument implementing the Mutual Defense Treaty, was deemed to have undergone the proper constitutional process.