By The South Asia Times

WASHINGTON — US President Donald Trump has sharply escalated his confrontational foreign policy, issuing fresh warnings to Colombia, Mexico and Denmark in a series of statements that have stirred diplomatic unease across the Americas and Europe.

Speaking to reporters on Monday, Trump reiterated that the United States is prepared to use “all necessary tools” to defend its national interests, explicitly naming countries he accused of undermining U.S. security and economic priorities.

“We’re not going to let weak borders, drug cartels, or hostile policies hurt the American people,” Trump said. “If countries like Colombia and Mexico refuse to cooperate, we will respond — economically, diplomatically, and in every other way that protects our nation.”

The remarks came as Trump also revived his controversial position on Greenland, declaring that the United States “needs” the strategically located Arctic territory, which is an autonomous region under the Kingdom of Denmark.

“Greenland is vital for our national security and global stability,” Trump said. “Denmark understands that. If they don’t, they will. The United States must have a stronger presence there.”

Colombia Pushes Back

Colombian President Gustavo Petro issued a swift warning in response, rejecting any attempt at intimidation and stressing Bogotá’s sovereignty.

“Colombia is not a colony of anyone,” Petro said in a statement. “We will cooperate on issues of security and migration, but we will not accept threats or pressure. Our relationship with the United States must be based on mutual respect, not coercion.”

Petro added that Colombia “will not sacrifice its dignity or independence” under any external demands, particularly on issues related to security cooperation and anti-narcotics operations.

Mexico Under Pressure Again

Trump also renewed criticism of Mexico, accusing its government of failing to stem migration and organized crime. He hinted at possible economic measures if Mexico does not meet Washington’s expectations.

“Mexico has to stop the flow — drugs, criminals, everything,” Trump said. “We’ve been patient, but patience has limits.”

Mexican officials have so far refrained from issuing a formal response, though senior government sources told local media that Mexico would “defend its national interests” while seeking to avoid an open diplomatic confrontation.

Denmark Rejects Greenland Remarks

Trump’s comments on Greenland triggered an immediate reaction in Copenhagen. Danish Prime Minister Mette Frederiksen dismissed any suggestion of U.S. claims over the territory, reiterating that Greenland is not for sale and that its future rests with its people.

“Greenland belongs to Greenlanders,” Frederiksen said. “Denmark will always stand by the principle of sovereignty and the right of peoples to determine their own future. Cooperation with the United States is important, but it must be grounded in respect.”

Greenland’s leaders have also consistently rejected any notion of foreign ownership, emphasizing their autonomous status within the Danish realm.

Rising Diplomatic Tensions

Analysts say Trump’s renewed pressure on multiple fronts reflects a broader effort to reassert American leverage globally, particularly through economic and political means.

“Trump is signaling that no relationship is immune from transactional politics,” said a Washington-based foreign policy expert. “But confronting allies like Denmark and partners like Colombia risks diplomatic fallout that could undermine U.S. credibility.”

The warnings come amid heightened international tensions following U.S. military actions in Latin America and growing geopolitical competition in the Arctic.

While no immediate policy measures have been announced, officials in Bogotá, Mexico City, and Copenhagen are closely monitoring Washington’s next steps, as Trump’s rhetoric continues to reshape America’s diplomatic posture on multiple continents.