Inter-American Conference on Problems of War and Peace

The original goals were to discuss the status of Argentina, the role of the United Nations and postwar American economic aid.

There was agreement that Argentina could rejoin the inter-American community if it were to declare war on Nazi Germany.

Therefore, the conference adopted a formal resolution called the Act of Chapultepec which proclaimed the principle of collective self-defense through regional pacts.

This policy was adopted by the United Nations and Article 51 of the UN charter, which authorized regional security arrangements.

The provisions also provided the basis for the Rio Treaty of 1947, which was an inter-American collective security pact.