Why Greenland Keeps Drawing U.S. Interest: A History of Purchase Attempts, Military Ties and Colonial Roots
Greenland’s long history of U.S. acquisition attempts — from offers in 1867 and 1946 to President Trump’s 2019 proposal — unfolds amid Denmark’s colonial legacy and evolving Greenlandic self-rule, shaping Arctic strategic, military and economic geopolitics today.
- Strategic value: Greenland’s location and bases like Thule make it central to Arctic defense planning.
- Repeated offers: U.S. purchase proposals date to 1867, 1946 and resurfaced in 2019, but no sovereignty transfer occurred.
- Colonial and legal history: Danish control since the 18th century is backed by treaties and international rulings, while Greenlandic self-rule has expanded since 1979.
Colonial roots and legal claims
Modern Danish presence began with missionary Hans Egede’s 1721 Lutheran mission and trading post near present-day Nuuk, marking the start of sustained Danish settlement after earlier Viking and Inuit habitation. See Britannica — Greenland history for fuller context.
After the 1814 breakup of the Denmark–Norway union the Treaty of Kiel explicitly left Greenland under Danish sovereignty. Denmark’s 1776 trade monopoly and long coastal restrictions reinforced control until mid-20th century changes. Norway’s early-1900s claims to parts of eastern Greenland were rejected by the Permanent Court of International Justice in 1933, affirming Denmark’s legal title. For a concise analysis, consult DIIS — Why is Greenland part of the Kingdom of Denmark: a short history.
Postwar evolution: In 1953 Greenland’s colonial status ended and it was integrated into Denmark with citizenship and representation. Home Rule began in 1979 and expanded to Self-Government in 2009, granting Greenlanders control over many domestic issues and natural resources — and the authority to chart independence if they choose. (See Britannica — Greenland history and DIIS — Why is Greenland part of the Kingdom of Denmark: a short history.)
A history of U.S. purchase attempts
U.S. interest in acquiring Greenland stretches back more than a century. Key moments include:
- 1867: The United States approached Denmark about buying Greenland (and Iceland) around the same time it purchased Alaska; Denmark declined.
- Early 1900s: Informal talks surfaced amid European territorial shifts, but nothing materialized. The U.S. instead bought the Danish West Indies in 1917. See a historical overview at Stanford — Buying Greenland isn’t a new idea.
- 1946: President Truman offered $100 million in gold for Greenland after WWII; Denmark refused. The result was a defense partnership permitting U.S. bases while preserving Danish sovereignty. (Background: DIIS and Stanford.)
- 2019: President Donald Trump publicly raised buying Greenland, citing military value, minerals and opening Arctic sea routes. Denmark and Greenland rejected the idea; Greenlanders’ rights under the 2009 Self-Government Act protect their say on independence. See Visit Greenland — American interest in Greenland and DIIS.
Pattern: Washington has repeatedly viewed Greenland as strategically useful, but both Denmark and Greenland have resisted transfers of sovereignty.
World War II, defense pacts and U.S. presence
German occupation of Denmark in 1940 prompted the Danish envoy in Washington, Henrik Kauffmann, to sign a 1941 agreement permitting U.S. defense of Greenland — taken without Copenhagen’s consent — enabling U.S. bases and supply lines during WWII. Control reverted to Denmark after the war, but the episode underscored Greenland’s wartime importance. (Overview: Britannica, Visit Greenland.)
The 1951 U.S.–Denmark Defense Agreement recognized Danish sovereignty while granting the U.S. the right to operate military facilities, most notably Thule Air Base in northwestern Greenland. The accord has been updated over time and remains central to U.S. Arctic posture. See Visit Greenland and analysis at Chatham House — Who owns Greenland?.
Greenland today: land, people, and resources
Size and population: Greenland is the world’s largest island but sparsely populated — roughly 56,000 residents live mainly along fjord-cut coasts in five municipalities; the vast interior ice sheet is largely uninhabited. (Reference: Britannica — Greenland history.)
Resources and changing access: The island sits near deposits of rare earths and other strategic minerals. Melting ice opens seasonal shipping lanes and makes mineral extraction more feasible, drawing attention from multiple global powers. See Chatham House — Who owns Greenland? and Visit Greenland — American interest in Greenland.
Why Greenland matters now: security and economics
For readers focused on security and trade, three decisive factors stand out:
- Military value: Facilities like Thule offer early-warning and operational reach as Russia and China increase Arctic activity. (Visit Greenland)
- New sea lanes: Seasonal Arctic routes shorten distances between major markets, altering trade and naval logistics. (Chatham House)
- Minerals and energy: Rare earths and strategic materials are increasingly accessible as ice recedes, raising strategic economic stakes. (Visit Greenland)
The balance of power and Greenland’s status
Despite persistent U.S. interest, Greenland remains a semi-autonomous territory within the Kingdom of Denmark. This outcome reflects both legal rulings that reinforce Danish sovereignty and Greenland’s expanded self-rule — culminating in the 2009 Self-Government Act that gives Greenlanders primary authority over natural resources and the final word on independence. Analysts note that modern policy choices are driven by great-power competition rather than simple buy-sell logic. (See DIIS and Britannica.)
Implications for United States
Economic: Greenland’s minerals and potential energy resources matter for U.S. industry and supply chains. Partnerships, investment and technology cooperation can secure access without altering sovereignty. (Visit Greenland, Chatham House)
Political: Any formal change in Greenland’s status requires Danish and Greenlandic agreement. The 2009 Self-Government Act limits unilateral action and places decisions about independence with Greenlanders. (DIIS)
Social and cultural: Greenland’s Inuit communities and small, dispersed population mean local perspectives are decisive. Framing U.S. engagement as partnership rather than acquisition reduces perceptions of neo-colonialism and supports cooperative projects in defense, science and industry. (DIIS)
Practical policy steps: Strengthen defense agreements, invest in Greenlandic infrastructure, support joint Arctic research, and back transparent resource governance. Continued presence at Thule and improved ice-capable capabilities are immediate priorities.
Quote: “The arc of U.S. interest in Greenland is less about purchase and more about ensuring strategic access and partnerships that respect Greenlandic self-determination.”
