The United States has articulated a persistent interest in Greenland, a self-governing territory of Denmark, leading to discussions on various potential approaches, including acquisition, enhanced diplomatic and economic engagement, and a Compact of Free Association. These initiatives align with historical precedents of U.S. interest in the Arctic region, driven by strategic and security considerations, as well as Greenland's significant mineral resources. Both Danish and Greenlandic authorities have consistently stated that Greenland is not for sale, while public opinion polls in Greenland indicate a majority support independence from Denmark but do not favor becoming part of the United States.
Historical Context and Rationale for U.S. Interest
U.S. interest in Greenland dates back to the 19th century, with the first consideration for purchase in 1867, following the acquisition of Alaska from Russia. The idea was revisited in 1910, and in 1917, the U.S. purchased the Danish West Indies, now the U.S. Virgin Islands. During the Cold War, the Truman administration formally offered $100 million for Greenland in 1946, citing its strategic importance. This offer was publicly disclosed in 1991.
More recently, former U.S. President Donald Trump expressed interest in the United States acquiring Greenland, with the White House confirming at the time that various options were under consideration. Rationales for this interest included U.S. national security, the presence of Russian and Chinese ships in the Arctic, and a broader U.S. foreign policy objective to enhance influence in the Western Hemisphere. China, for its part, described itself as a "near-Arctic state" in 2018. Greenland is known for its mineral wealth, including rare earths and oil.
Acquisition Options Discussed
Discussions surrounding potential U.S. acquisition have broadly focused on three primary options: military action, a direct purchase, and a Compact of Free Association.
Military ActionDuring the Trump administration, military action was not explicitly ruled out as a potential means of acquisition. Some defense analysts suggested that a rapid military operation to secure Greenland could be executed due to its large geographical area and small population, which is approximately 57,000-58,000, with about one-third residing in the capital, Nuuk. Greenland does not maintain its own military, and Denmark's defense assets in the vast territory are limited, although Denmark has increased its defense spending in the Arctic. The United States maintains a military presence at the Pituffik facility in northwestern Greenland, which has existed since World War Two and reportedly houses between 100 and 500 personnel. Experts such as Hans Tito Hansen and Justin Crump suggested that U.S. forces, including the Alaska-based 11th Airborne Division, could facilitate a swift deployment.
Conversely, former U.S. officials and defense analysts, including Mick Mulroy, deemed a military operation highly improbable. They cited profound implications for U.S.-European alliances, international law, and the fact that Denmark is a NATO treaty ally posing no threat. Concerns were also raised about potential resistance from U.S. lawmakers. Danish Prime Minister Mette Frederiksen stated that a U.S. military attack on Greenland would fundamentally alter international security structures and could lead to the dissolution of NATO. The French foreign minister indicated that U.S. Secretary of State Marco Rubio later dismissed the possibility of an invasion. Some analysts suggested that the mention of military action might have served as a negotiation tactic.
Direct PurchaseU.S. Secretary of State Marco Rubio reportedly informed members of Congress that purchasing Greenland remained the administration's preferred approach. However, both Nuuk and Copenhagen have publicly and consistently stated since 2019 that Greenland is not for sale.
Challenges to a purchase include the requirement for congressional appropriation of funds and Senate support for a treaty-based acquisition, as well as approval from the European Union. International law experts suggest that any transfer agreement would likely require Greenlandic participation to respect self-determination. While historical precedents for territorial purchases exist (e.g., Louisiana, Alaska, the Virgin Islands), such transactions are less common today without the consent of the local population. The potential cost of purchasing Greenland remains unspecified, with estimates ranging from billions to a U.S. think tank's valuation of nearly $2.8 trillion.
Compact of Free Association (Cofa)Washington officials have reportedly been developing a "Compact of Free Association" model, similar to agreements the U.S. maintains with Pacific island nations. Under such an agreement, a smaller nation retains independence while receiving guaranteed protection from Washington and potentially advantageous duty-free trade. Concurrently, the U.S. military would gain operational access in the strategically significant territory with fewer restrictions.
For Greenland to enter a Cofa, it would need to achieve full independence. Greenland gained 'home rule' in 1979 and greater self-governance in 2009, with Denmark indicating it would grant full independence following a successful referendum. A senior U.S. official confirmed that a Cofa was among the options under consideration by the Trump administration. Representatives from Greenland's government have reportedly met with the Federated States of Micronesia's ambassador to the U.S. to learn more about their compact.
Greenland's Self-Determination and Public Opinion
Greenland is a self-governing territory of Denmark, with its foreign and security policies managed by Copenhagen. The island has ambitions for full independence, and its 2009 self-rule law allows for a referendum on independence. Opinion polls indicate that a majority of Greenlanders support independence from Denmark. However, a January poll indicated that 85% of Greenlanders did not support becoming part of the U.S., with 6% in favor. Another poll of approximately 500 residents showed 43% viewed U.S. interest as an opportunity, while 45% saw it as a threat.
The current four-party coalition government in Greenland affirms that the island belongs to its people. The opposition Naleraq party also supports independence and has expressed openness to dialogue with the U.S., with its leader Pele Broberg expressing confidence that the U.S. would protect an independent Greenland. On March 15, 2025, a demonstration took place outside the U.S. consulate in Nuuk, with participants displaying signs like 'We are not for sale' and using the slogan 'Greenland belongs to the Greenlandic people'.
Diplomatic Engagement and Economic Development
The U.S. has initiated efforts focused on diplomatic relations and economic and educational development in Greenland. The U.S. consulate in Nuuk reopened in 2020, and a special envoy to Greenland was appointed. Denmark has expressed suspicions of additional U.S. activities, including an alleged influence campaign, which Copenhagen believes aims to encourage Greenland's independence movement.
U.S. Vice President JD Vance, during a March 2025 visit to Nuuk, stated his hope that an independent Greenland would choose to partner with the United States. Mining company Amaroq reported that the White House has engaged in discussions with the firm regarding investment in its mining projects in Greenland. Aaja Chemnitz, Greenland's representative in the Danish Parliament, confirmed that Greenland is 'open for business' for such transactions, while clarifying that this does not indicate a welcome for a takeover bid.
U.S. Secretary of State Marco Rubio is scheduled to meet with Danish authorities and Greenland's Vivian Motzfeldt to discuss potential U.S. acquisition and other issues, including Greenland's desire for independence and Europe's response.
Existing U.S. Military Presence and Agreements
The United States already possesses significant military access to Greenland through existing agreements. A 1951 U.S.-Danish agreement permits the U.S. to "construct, install, maintain and operate" military bases across the territory. This treaty, updated in 2004, grants the U.S. authority to house personnel and control the movement and operation of ships, aircraft, and waterborne craft. Copenhagen has indicated willingness to allow a significant expansion of the U.S. military presence in Greenland.
Additionally, an agreement signed in December 2023 and effective since last year provides the U.S. with unrestricted access to Danish airbases and authorizes military activities in and from Denmark. The U.S. holds similar agreements with Sweden, Finland, and Norway.