Denmark and Greenland leaders cautiously optimistic after U.S. security deal

Denmark and Greenland's leaders appeared cautiously optimistic a day after President Trump announced a new security deal that would bolster U.S. military presence in a NATO ally's semiautonomous territory.

Mr. Trump announced on Friday he struck a deal to give the U.S. "permanent control over security, and all other needs, in Greenland, completely addressing ALL of our many U.S. concerns."

Denmark and the U.S. already have a long-standing security agreement that has allowed the U.S. to deploy forces in Greenland, and it was not immediately clear how this deal was different.

The agreement is expected to be signed in New York City on Tuesday when world leaders will be in town for the United Nations General Assembly, two U.S. officials told CBS News.

However, the office of Denmark's prime minister, Mette Frederiksen, said parliamentary action is still needed by the Danish and Greenland governments before it can be enforced.

"Next week could be a good week … for Greenland, Denmark, and the United States alike," Danish Foreign Minister Lars Løkke Rasmussen wrote in an Instagram post Saturday morning.

"A period of uncertainty will hopefully be replaced by a binding agreement that strengthens security in the Arctic and the North Atlantic — and thus also our shared security within NATO and Europe — while respecting the Kingdom's red lines," he added.

Greenland's government leader, Jens-Frederik Nielsen, said he was happy about the deal, which he said "benefits not only our collective security, but also the continued development here in the country."

Greenland's foreign minister, Múte B. Egede, said he was pleased that "we now have an agreement within reach."

"It has taken some time," he told Denmark's TV2 broadcaster. "I'm pleased that we finally have an end product within reach. And it's about time."

A State Department official told CBS News the U.S. was guaranteed permanent access to the island and overflight rights, allowing the military to potentially increase the number of bases. The deal also blocks non-NATO members from establishing military bases, and restricts American adversaries from making sensitive investments in Greenland, the official said.

A NATO spokesperson said the military alliance welcomed the deal, which would "help advance security, stability and cooperation in this vital region," CBS News partner BBC News reported .

Mr. Trump said that with the agreement, the U.S. would "immediately" begin the process of developing a larger military presence on the mineral-rich Danish territory.

The U.S. had long held several bases and installations on the Arctic territory through the Cold War, before dialing back its presence.