Texas claims nine Rio Grande islands, authorizes security entry; Mexico cites 1970 treaty

Texas Land Commissioner Dawn Buckingham asserted state jurisdiction over nine islands in the Rio Grande, citing potential criminal use, and authorized entry of Texas security forces. Mexico has demanded respect for the 1970 boundary treaty, which defines the river's midline as the border. The move escalates a territorial dispute and could strain bilateral relations, though no illegal activity has been confirmed.

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