Former U.S. President Donald Trump has reignited debate over his expansionist political rhetoric after posting an uncaptioned map to his Truth Social platform that depicts multiple North American and Caribbean nations, including the Dominican Republic, Mexico, Canada, Greenland, and Iceland, as falling under the coverage of the U.S. flag. The cryptic post, shared on Monday, comes as Trump has spent months rolling out a series of provocative proposals to redraw geographic boundaries and rename key North American waterways and land masses, fueling concerns about his territorial ambitions if he wins a second presidential term. The map was published just hours after Trump floated another controversial renaming suggestion on the same platform, arguing that the U.S. state of New Mexico should be rechristened “New America.” This proposal follows a string of similar renaming pushes, from rebranding the Gulf of Mexico as the “Gulf of America” to a recently signed executive order that would rename Lake Ontario — a transboundary body of water shared by the U.S. and Canada — as “Lake America.” The provenance of the map shared this week remains unconfirmed. Trump regularly reposts user-generated memes, fan-created graphics, and AI-generated content from his supporters, and there is no evidence to frame the image as an official U.S. government policy proposal or formal territorial claim. Even so, the post aligns with a pattern of aggressive territorial rhetoric Trump has deployed in recent months. He has repeatedly made public comments about U.S. interests in Greenland, pushed for closer integration of Canada into the U.S., and refused to rule out the use of military force to achieve political goals in Cuba. This pattern of commentary has already drawn formal and informal pushback from regional governments. On Monday, Mexican President Claudia Sheinbaum issued a sharp public statement that, while not referencing Trump’s map directly, made clear Mexico’s position on territorial sovereignty. “Mexican territory is not and will not a colony or protectorate of any foreign country,” she asserted. Though analysts and the public have focused particular attention on the unprompted inclusion of the Dominican Republic and other smaller Caribbean nations in the map, Trump has so far offered no context to explain why the countries were marked as falling under the U.S. flag, nor has he unveiled any formal policy proposal seeking to absorb those nations into the United States.