The president-elect's undiplomatic talk in recent days of reclaiming the Panama Canal — and annexing Greenland and even Canada — have some experts comparing his strategy to Nixon's "Madman Theory."

President-elect Trump has inspired Republican members of Congress to introduce a bill that would allow the federal government to take steps to repurchase the Panama Canal. Why it matters: It's the second time this week GOP lawmakers have rushed to propose legislation that would codify Trump's vision for a new era of American expansionism.

President-elect Donald Trump has tossed expansionist rhetoric at U.S. allies and potential adversaries with arguments that the frontiers of American power need to be extended into Canada and the Danish territory of Greenland, and southward to include the Panama Canal.

The Axios portal reports that Denmark contacted Donald Trump's team regarding joint efforts to enhance Greenland's security. The US President-elect is considering taking control of the island. According to Axios,

The Axios portal reports that Denmark is contacting Donald Trump's team to discuss collaborative efforts to enhance Greenland's security. The U.S. President-elect is contemplating taking control of the island.