At the intersection of ice and empire, Denmark and the United States have formalized an agreement granting Washington permanent authority over Greenland's security, to be signed at the United Nations General Assembly in New York. The deal, months in the making under sustained pressure from President Trump, explicitly bars Russia and China from establishing any military foothold in the Arctic territory. Danish and Greenlandic officials have framed it as a sovereign choice rather than a concession, yet the agreement's undisclosed terms leave open the deeper question of what sovereignty, in pract