Mexico, Guatemala, and Belize have signed an agreement to establish the Corredor Biocultural Gran Selva Maya, a protected reserve spanning 5.7 million hectares of tropical forest across the three countries. The agreement, formalized through the Declaration of Calakmul, aims to preserve one of the world's most extensive and ecologically important ecosystems. The initiative was led by Mexico's President Claudia Sheinbaum, Guatemala's President Bernardo Arévalo, and Belize's Prime Minister John Briceño. The corridor is intended not only to protect the natural environment but also to support the development of indigenous communities within the region. This trilateral cooperation represents a major step in regional environmental conservation efforts.