Estrada Doctrine

The Estrada Doctrine is the name of Mexico's core foreign policy ideal from 1930 to the early 2000s. Its name derives from Genaro Estrada, Secretary of Foreign Affairs during the presidency of Pascual Ortiz Rubio (1930–1932).

The doctrine was the most influential and representative instrument in the country's foreign policy for seventy years, it claims that foreign governments should not judge, positively or negatively, the governments or changes in government of other states, in that such action would imply a breach of state sovereignty. This policy was said to be based on the principles of non-intervention, peaceful resolution of disputes and self-determination of all nations.

On September 12, 1931, Mexico was admitted to the League of Nations. This was a significant event as it had not been invited since the creation of the inter-governmental organization once the First World War ended, which can be mainly attributed to some unsolved problems between Mexico and the United States. In the heart of the forum, Mexico established its position in favor of the international law and the principles of non-intervention and self-determination. The Mexican government always supported the peaceful resolution of disputes, and rejected the use of force in international relations. All of this gave the country a major international prestige. As for its southern neighbors in Latin America and the Caribbean, Mexico returned to the International Conference of American States, where it had been previously excluded due to lack of recognition from the U.S. The country gained an outstanding prestige in the conferences that took place in Havana (1928) and Montevideo (1933), whose posture was in favor of the Latin American union and international law.

...
Wikipedia