Argentina Milei wins Trump backing at security meeting

Trump told the gathering he had backed allies across the region and claimed “great victories” in Argentina and Colombia, underscoring how the White House is using election results to shape a bloc of ideologically aligned governments. The U.S. president framed the alliance as a tool for “economic and national security” and warned against outside powers taking control of the region’s resources, a clear nod to China.

Milei used the forum to cast Argentina as a strategic partner not just on security, but on energy, mining and supply chains. He said Argentina was ready to support efforts to track criminal financing, protect institutions from infiltration and help build “a more prosperous and secure region,” language aimed at translating political alignment into investment appeal.

The declaration signed at the meeting went beyond policing. It called for closer cooperation on critical minerals supply chains, investment screening, digital infrastructure rules and coordinated financial action against criminal groups. That matters economically because it ties Argentina and its regional partners more tightly to U.S.-led standards at a time when competition for lithium, energy assets and infrastructure investment is intensifying.

For investors, the immediate takeaway is that Milei is still trying to convert foreign-policy alignment into market confidence. Argentina’s assets have been volatile, and the president’s ability to keep Washington engaged could matter for financing, risk sentiment and the broader case for dollar inflows into the country’s energy and mining sectors.

The backdrop is politically important as well. Milei is entering a period in which he needs to preserve reform credibility without losing support at home, making external validation from Trump especially valuable. The next catalysts are whether the U.S. relationship produces concrete bilateral support, whether Argentina can attract fresh investment, and whether the government can keep its fiscal and currency program intact while the election cycle heats up.