Donald Trump issues Greenland deadline

President Donald Trump has said the U.S. will revisit its stance on Greenland in the coming weeks.

Asked if he expected to take action on the territory, Trump told reporters aboard Air Force One on Sunday: "Let's talk about Venezuela, Russia, Ukraine. We'll worry about Greenland in about two months. Let's talk about Greenland in 20 days."

He added: "We need Greenland from a national security situation. It's so strategic."