Argentina and Chile have formally closed the controversy over the Magallanes region, with both governments ratifying Chile’s sovereignty over the entirety of the Strait of Magallanes, according to Clarin.com.
The agreement was reported on Thursday, September 3, 2026, following diplomatic discussions between the two neighboring countries. Clarin.com states that the resolution puts a definitive end to the dispute, confirming Chilean control over the full extent of the strategic waterway.
The development comes amid a broader exchange between the two nations. Clarin.com also reports that Argentine President Javier Milei met in Chile with the U.S. Under Secretary of State for Public Diplomacy. In a separate encounter, Infobae notes that Milei held a brief bilateral meeting with Chilean politician José Antonio Kast, during which the Strait of Magallanes was mentioned just hours before an Argentine national broadcast concerning the Falkland Islands, known in Spanish as Las Malvinas.
