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The Inter-American Treaty of Reciprocal

Assistance and the Crisis in Venezuela



Updated September 13, 2019

On September  11, 2019, the United States and 11 other Western Hemisphere nations invoked the Inter-
American Treaty of Reciprocal Assistance (Rio Treaty) to facilitate a regional response to the crisis in
Venezuela. Foreign ministers from the countries that have ratified the treaty (states parties) are to
convene in the coming weeks to discuss a range of options that could include the suspension of
diplomatic and consular relations, the imposition of economic sanctions, or the use of armed force.
Congress may closely track the deliberations, given their potential implications for U.S. policy.


Background

The Rio Treaty, which was signed in 1947 and entered into force in 1948, is a collective security pact
among  19 of the 35 countries of the Western Hemisphere. The United States ratified the treaty in 1947
after the U.S. Senate provided its advice and consent. Article 3 of the Rio Treaty asserts than an armed
attack by any State against an American State shall be considered as an attack against all American
States, and it calls on each party to the treaty to assist in collective self-defense. Article 6 of the treaty,
which was invoked in this case, empowers states parties to collectively respond to any other situation
that might endanger the peace of the region.
The treaty establishes a Meeting of Consultation of Ministers of Foreign Affairs as the principal forum
through which states parties are to address collective security threats. Any treaty signatory may request
such a meeting but must secure the votes of an absolute majority of parties to the treaty within the
Permanent Council of the Organization of American States (OAS). The United States, Argentina, Brazil,
Chile, Colombia, the Dominican Republic, El Salvador, Guatemala, Haiti, Honduras, and Paraguay
supported the resolution calling a Meeting of Consultation to address the crisis in Venezuela. The interim
Venezuelan government of Juan Guaid6, which is recognized by the OAS and rejoined the Rio Treaty in
August 2019, also backed the resolution. Five other nations (Costa Rica, Panama, Peru, Trinidad and
Tobago, and Uruguay) abstained from the vote; the Bahamas was absent.
As noted above, Article 8 of the treaty authorizes states parties to engage in a variety of collective
measures, such as breaking diplomatic and consular relations, restricting economic relations, and using


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