Washington/IBNS, Jan. 10 -- US President Donald Trump escalated his provocative rhetoric about Greenland on Friday, suggesting the United States may act forcefully to secure control of the autonomous Arctic island if diplomatic efforts fail.

Speaking at the White House, Trump brushed aside Denmark's sovereignty and framed his push as necessary for national security amid intensifying geopolitical competition in the Arctic.

Trump's comments have reignited a diplomatic firestorm, drawing sharp rebukes from Denmark and alarm from European allies, who regard the Arctic territory's status as protected under international law and long-standing alliances.

At the meeting with oil executives, Trump reiterated that the United States must act to p...