Trump Signs Security Deal for Greenland Amid Annexation Standoff
The agreement grants the U.S. 'permanent control over security' in the Arctic territory, falling short of outright annexation.

President Donald Trump signed a security agreement for Greenland on Tuesday, aiming to resolve a prolonged standoff over the semi-autonomous Danish territory. The ceremony, held at the United Nations General Assembly in New York, included Danish Prime Minister Mette Frederiksen and Greenland's Prime Minister Jens-Frederik Nielsen.
The deal comes after Trump repeatedly expressed interest in annexing Greenland, citing it as a matter of "national security" due to the island's strategic location between the U.S., Russia, and Europe. Trump had previously suggested that Denmark could not be trusted to protect the island and had threatened tariffs on European allies, even considering a U.S. withdrawal from NATO over the issue.
While Trump had advocated for the U.S. to take over Greenland as a territory, the signed agreement does not include this provision. Instead, Trump stated that the deal provides the U.S. with "permanent control over security and all other needs on that territory." He emphasized that no U.S. adversary would be permitted to establish a military presence or make sensitive investments in Greenland without explicit U.S. approval.
Following the announcement of the deal, Trump indicated that the U.S. would "immediately begin the process of developing a large military presence" in Greenland under an "infinite life agreement." A State Department official described the deal as ensuring Greenland will permanently be part of North America's strategic defense area.
Officials from Denmark and Greenland expressed optimism about the agreement, stressing that it upholds the territory's sovereignty. Fears among Greenlanders regarding sovereignty had surfaced during Trump's earlier pressure campaign. Critics have questioned whether the new agreement significantly differs from the existing 1951 defense pact, which already granted the U.S. extensive rights in Greenland.
The U.S. currently operates the Pituffik Space Base in northwestern Greenland, which supports missile warning and space surveillance. The new agreement allows for the establishment of additional defense areas at Narsarsuaq and Mestersvig.
Security Guarantees and Investments
Trump has emphasized that the agreement grants Washington "permanent control" over Greenland's security, a concern he framed as central to his campaign for U.S. control of the island. He asserted that "world peace is at stake" and that China and Russia desire Greenland, a capability Denmark lacks.
The agreement prohibits any U.S. "adversary" from establishing a base, having a military presence, or making "sensitive investments" in Greenland without written U.S. consent. A State Department official stated that the deal establishes "permanent" guarantees preventing adversaries from investing in sensitive sectors without investment screening, explicitly prohibiting Chinese and Russian bases or troop presence.
Experts suggest the permanence of the new agreement marks a departure from the 1951 treaty, which was linked to NATO and could have ended if NATO dissolved or Greenland or Denmark left the alliance. While the provisions regarding future investments are notable, they are not considered groundbreaking by some analysts. Previous U.S. efforts have reportedly thwarted foreign investments in Greenland, such as urging Denmark to finance airports to counter a Chinese proposal that was ultimately withdrawn.
Danish and Greenlandic Perspectives
Officials from Denmark and Greenland voiced support for the agreement. The office of Prime Minister Frederiksen stated that the deal "recognizes the sovereignty and territorial integrity of the Kingdom and the right of the Greenlandic people to self-determination," while also strengthening common security in the Arctic and North Atlantic.
Danish officials reaffirmed their stance on sovereignty, asserting that the deal respects established "red lines" and the territory's sovereignty. Greenlandic Prime Minister Nielsen stated the agreement recognizes Greenland's interests and its role in international cooperation, expressing hope for "peace around our country."
NATO's Role
The agreement underscores NATO's importance, stipulating that through enhanced presence, surveillance, and cooperation, Denmark will continue to address emerging threats and contribute to collective stability in the Arctic. NATO spokesperson Allison Hart affirmed the Arctic and North Atlantic's essential role in collective security.
Under the agreement, non-NATO states are prohibited from establishing military installations or maintaining a persistent military force presence in Greenland, unless mutually agreed upon. Analysts suggest the deal is a positive development for the alliance, removing a significant political irritant. NATO has recently increased its posture in the Arctic, launching initiatives like Arctic Sentry and establishing Forward Land Forces Finland, reflecting a broader response to the evolving security environment and increased Russian operations in the region.
The 1951 Defense Agreement
Many aspects of the new deal closely resemble the 1951 Defense of Greenland Agreement, which served as the foundation for U.S. military operations on the island. This agreement allowed Washington to establish and operate military bases deemed necessary for the defense of Greenland and the North Atlantic area.
The Pituffik Space Base remains the sole active U.S. military installation in Greenland, with approximately 150 personnel. The 1951 agreement also permitted the U.S. to station personnel, control related aircraft and shipping, and develop necessary infrastructure. While the 1951 agreement confirmed Danish and Greenlandic sovereignty and mandated adherence to local laws, the 2004 Igaliku agreement further stipulated that Washington would consult with Greenland and Denmark on significant changes to military facilities or operations.