Former national security adviser Robert O’Brien said in a Sunday interview that Denmark should let the U.S. “buy” Greenland if it cannot defend the self-governing country, noting the territory will become increasingly important in the coming years.

Greenland’s Prime Minister Múte Egede said Wednesday he would like to see the autonomous territory break away from Denmark in a New Year’s Day address to inhabitants of the world’s largest island. In an address that was delivered Wednesday and flagged by The Hill on Friday afternoon,