Does Trump’s Space-Based Interceptor Shield Really Require Greenland?
(Image Source: MSN; https://tinyurl.com/yx4n2xhy)
By Grace Klopp
This op-ed analyzes the strategic and political rationale behind proposals to acquire Greenland in support of the U.S. Golden Dome missile defense system. It argues that existing defense agreements already provide the United States with sufficient access to Greenland’s strategic advantages, rendering territorial acquisition unnecessary. The op-ed concludes that the diplomatic, legal, and geopolitical costs of acquisition would outweigh any marginal security benefits, particularly given the broader implications for NATO cohesion and the rules-based international order.
No missile defense system is perfect. When lives are at stake in a world of emerging threats, however, it is rational for a country to try and close the gaps of its missile defense system. The idea of a “Golden Dome for America” arose in U.S. political and defense discussions in late 2024.i The concept was described as a large-scale, integrated missile-defense architecture designed to protect the U.S. homeland from intercontinental ballistic missiles (ICBMs), hypersonic weapons, cruise missiles, drones, and missile swarms.ii The U.S.’s current defense system is centered on Ground-based Midcourse Defense that has limited to no defense against ICBMs, hypersonic missiles, and low-altitude cruise missiles.iii
A strong missile defense system is also heavily reliant on space-based infrared systems, early warning radars, and other global sensors in space or placed along likely missile flight paths.iv The Pituffik Space Base, operated by the U.S. Space Force in Greenland, sits directly under potential Russian ICBM flight paths. Its primary sensor, the Ballistic Missile Early Warning System radar, provides several additional minutes of warning time in the event of a Russian or Chinese ICBM attack.v While no Golden Dome defense planners have suggested turning Pituffik into a major interceptor site, a 2019 NORAD and U.S. Northern Command modernization study suggested the construction of a new Network Operations Center at Pituffik to enhance strategic air defense.vi
U.S. President Donald Trump first publicly floated the idea of purchasing Greenland from Denmark in August 2019, which Denmark’s then-prime minister described as “an absurd discussion.”vii At that time, Trump did not clearly articulate his motivations for buying Greenland. Officials prescribed potential strategic interests for the proposed venture, one being geostrategic positioning in the Arctic to counter Russian and Chinese activity in the region. At the World Economic Forum in Davos in January 2026, Trump then explicitly outlined his intentions of acquiring Greenland after meeting with U.S., Danish, and Greenlandic officials: “The U.S. needs Greenland for the purpose of national security…it is vital for the Golden Dome that we are building.”viii The President also emphasized that Denmark would fail to counter a Russian or Chinese occupation of Greenland: “…the problem is there’s not a thing that Denmark can do about it…but there’s everything we can do. You found that out last week with Venezuela.”ix While Trump’s rhetoric on the idea of using military force to acquire Greenland has quieted down, he stated in March 2026 that the U.S. has formed a “framework of a future deal” regarding Greenland and the Arctic region after talks with NATO leadership.x
The question remains: Why does Trump want to acquire Greenland for the Golden Dome, rather than expand off existing U.S.-Denmark defense agreements to build the necessary military infrastructure on Greenland? The 1951 Greenland Defense Agreement already permits the U.S. “to construct, install, maintain, and operate such facilities and equipment” as it may be necessary for the defense of Greenland and the North Atlantic area.xi Danish researchers have stated that the “U.S. would be able to achieve almost any security goal that you can imagine under that agreement.”xii While the Danish and U.S. governments would need to negotiate the expansion of a U.S. military presence under the existing agreement; historically, the U.S. has had no issues securing agreements with the Danes on national security priorities.
Trump’s insistence on acquiring Greenland makes more sense when considered as part of his administration’s shift away from multilateralism. Reinforcing a more defiantly unilateral foreign policy that places greater emphasis on national autonomy and transactional diplomacy. Trump’s withdrawals from international agreements like the Paris Climate Agreement or Intermediate-Range Nuclear Forces Treaty, as well as his criticisms of NATO burden sharing, highlight the administration’s skepticism of international alliances that may constrain domestic policy decisions and take advantage of the U.S.’s good will. “Ownership gives you things and elements that you can’t get from just signing a document,” Trump told reporters regarding his desire to possess the entirety of Greenland.xiii Direct territorial control, reduced dependence on allied consent, and greater strategic autonomy are highly valuable to this administration. This pattern helps explain why Trump’s distrust in Denmark’s and NATO’s ability to secure Greenland (and, by proxy, vital U.S. assets) from major military powers like Russia or China has prompted serious consideration of territorial acquisition. Territorial acquisition would theoretically give the U.S. power to secure long-term Arctic sovereignty and maintain dominance in the North Atlantic, all while side stepping the challenges that come with alliances and treaties.xiv
The acquisition of Greenland would give the U.S. long-term Arctic sovereignty and maybe even strengthen the largely theoretical Golden Dome project, but only in a vacuum. The reality is that the severe diplomatic fallout would greatly outweigh any marginal national security benefits. The U.S. already sustains most of the necessary strategic benefits of Greenland without owning it. The acquisition would clash with modern international legal norms – to include the United Nations charter, the principle of self-determination, and protections of indigenous peoples. Which would, in turn, weaken the rules-based international system that the U.S. has historically tried to support. The Trump administration has not spared any thought towards how it would effectively govern the population of Greenland, or how it would handle the financial and administrative burdens of providing a new territory with infrastructure, disaster relief, and other long-term governance costs. Trump’s past statements highlighting prestige, legacy, and his psychological need for possession as motivating factors for taking Greenland are worryingly irrational and undermine the argument that the U.S. needs Greenland for the Golden Dome shield.
Greenland, once seen as an undesirable and inhospitable island by much of the West, is now center stage in a bizarre fight for Arctic supremacy. While Trump’s passion for Greenland acquisition harbors some rationality at first and second glance, it ultimately reveals his disregard of the multilateral, rules-based international system that past U.S. administrations have worked hard with allies and partners to build. Greenland and Denmark should continue to publicly emphasize alterative paths of cooperation with the U.S. that involve adhering to the 1951 Greenland Defense Agreement. The Trump administration should consider that the cons of territorial acquisition will far outweigh the pros of arguable national security benefits, especially while the Golden Dome is largely in its conceptual stages.
Bibliography
“Architects of Modern Missile Defense.” Northrop Grumman Corporation, https://www.northropgrumman.com/what-we-do/missile-defense/ground-based-midcourse-system
“Arctic Endurance Continues Throughout 2026.” Forsvaret, January 23, 2026. https://www.forsvaret.dk/en/news/2026/arctic-endurance-fortsatter-i-hele-2026/
“Agreement Between the United States and the Kingdom of Denmark Concerning the Defense of Greenland.” Yale Law School, Avalon Project. https://avalon.law.yale.edu/20th_century/den001.asp
Bingen, Kari, “Why a Golden Dome for America Is the Case the Administration Should Make.” Center for Strategic and International Studies, January 30, 2026. https://www.csis.org/analysis/why-golden-dome-america-case-administration-should-make
Brezar, Aleksandar, “Trump Suspends European Tariffs After ‘Framework’ Greenland Deal Agreed.” Euronews, January 21, 2026. https://www.euronews.com/2026/01/21/trump-suspends-european-tariffs-after-framework-greenland-deal-agreed
Chomsky, Martin, “Scott Bessent Says Greenland Is Essential to Trump’s Golden Dome Defense Plan, Warns of Conflict Risks.” Defense Industry Europe, January 21, 2026. https://defence-industry.eu/scott-bessent-says-greenland-is-essential-to-trumps-golden-dome-defense-plan-warns-of-conflict-risks/
“Danish PM Says Trump’s Idea of Selling Greenland to U.S. Is Absurd.” Reuters, August 2019 https://www.reuters.com/article/world/danish-pm-says-trumps-idea-of-selling-greenland-to-us-is-absurd-idUSKCN1V9076/
Graham-Harrison, Emma. “‘I can’t digest it’: deadliest attack on Israel since war began kills nine and destroys synagogue.” The Guardian, March 3, 2026. https://www.theguardian.com/world/2026/mar/03/israelis-mourn-after-deadly-iranian-attack
“Ground-Based Midcourse Defense.” Missile Defense Advocacy Alliance, https://www.missiledefenseadvocacy.org/defense-systems/ground-based-midcourse-defense/
Heggelund, Gørild, Iselin Stensdal, and Erdem Lamazhapov. “Dig, Baby, Dig? China’s Mineral Dominance and Ripple Effects into the Arctic.” The Arctic Institute, January 6, 2027. Dig, Baby, Dig? China’s Mineral Dominance and Ripple Effects into the Arctic | The Arctic Institute – Center for Circumpolar Security Studies
Henley, Jon. “Trump insists Greenland is crucial for national security after Denmark talks.” The Guardian, January 14, 2026. https://www.theguardian.com/world/2026/jan/14/greenland-us-trump-talks-denmark
Jacobsen, Stine, “Protesters in Denmark Support Greenland After Trump’s Takeover Threat.” Reuters, January 17, 2026. https://www.reuters.com/world/europe/protesters-denmark-support-greenland-after-trumps-takeover-threat-2026-01-17/
Kongshaug, Anders. “A U.S. Takeover of Greenland Would Mark the End of NATO, Danish Prime Minister Says.” PBS NewsHour and Associated Press, January 6, 2026. https://www.pbs.org/newshour/world/a-u-s-takeover-of-greenland-would-mark-the-end-of-nato-danish-prime-minister-says
Little, Tom, “Greenland Should Hold Talks with U.S. Without Denmark, Opposition Leader Says.” Reuters, January 8, 2026. https://www.reuters.com/world/europe/greenland-should-hold-talks-with-us-without-denmark-opposition-leader-says-2026-01-08/
Peck, Michael, Defense News Staff. “Greenland Radars Vulnerable to Hypersonic Missiles, Critics Warn.” Defense News, October 23, 2025. https://www.defensenews.com/land/2025/10/24/greenland-radars-vulnerable-to-hypersonic-missiles-critics-warn/
“Pituffik Space Base: Strengthening U.S. Defense Capabilities in the Arctic.” March 4, 2025, The Watch Journal. https://thewatch-journal.com/2025/03/04/pituffik-space-base-strengthening-u-s-defense-capabilities-in-the-arctic/
Popli, Nik. “On Eve of Crunch Talks with U.S., Greenland Declares: ‘We Choose Denmark.’” Time, January 13, 2026. https://time.com/7345949/greenland-denmark-trump/
Sherman, Erik. “Tariffs Tied to Trump’s Greenland Demand Could Hit U.S. Taxpayers.” Forbes, January 19, 2026. https://www.forbes.com/sites/eriksherman/2026/01/19/tariffs-tied-to-trumps-greenland-demand-could-hit-us-taxpayers/
Stone, Mike. “Trump’s Golden Dome Missile Shield Marks One Year with Little Progress.” Reuters, January 27, 2026. https://www.reuters.com/business/aerospace-defense/trumps-golden-dome-missile-shield-marks-one-year-with-little-progress-2026-01-27/
“Sweden Sends Fighter Jets to Patrol Around Greenland as Part of NATO’s Arctic Sentry.” Reuters, February 12, 2026. https://www.reuters.com/business/aerospace-defense/sweden-send-fighter-jets-patrol-around-greenland-part-natos-arctic-sentry-2026-02-12/
“Trump Confirms Greenland Interest, Calls It a ‘Large Real Estate Deal.’” MarketWatch, August 18, 2019. https://www.marketwatch.com/story/trump-confirms-greenland-interest-calls-it-a-large-real-estate-deal-2019-08-18
Yang, Maya. “‘I don’t need international law’: Trump says power constrained only by ‘my own morality.’” The Guardian, January 8, 2026. https://www.theguardian.com/us-news/2026/jan/08/trump-power-international-law
“7 Out Of 10 Voters Do Not Want The U.S. To Take Military Action Against Iran For Killing Of Protesters, Quinnipiac University National Poll Finds; 70% Say Presidents Should Seek Congressional Approval Before Taking Military Action Against Another Country.” Quinnipiac University Poll. January 14, 2026. https://poll.qu.edu/poll-release?releaseid=3945
ABOUT THE AUTHOR(S)
Grace Klopp
Grace Klopp is a 2027 candidate for a Master of Arts at the American University School of International Service. Having worked as a policy analyst in the Department of Defense for several years, Grace’s main career interests lie in the Taiwan strait, U.S.-China relations, military strategy, and U.S. defense policy.
Leave a Reply