Politics Polymarket September 20, 2026
US and Denmark Ink Greenland Security Deal After Trump Threats
Trump x Greenland deal signed by...?
Polymarket prices this December 31 at 97%. The reporting broadly agrees.
The United States and Denmark have reached a security agreement concerning Greenland, a significant development following President Donald Trump's repeated calls for greater U.S. involvement in the semi-autonomous territory. Multiple outlets, including the BBC and The New York Times, report that the deal will establish a "permanent" U.S. military presence on the island. This resolution comes after a period of heightened diplomatic tension, with President Trump having previously threatened to annex the territory. The agreement is expected to be formally signed by December 31, 2026, a deadline that traders are watching closely, with their confidence in a deal being finalized reflected by 97%.
Background
President Trump's interest in Greenland became a public issue shortly after his re-election in December 2024, when he began advocating for U.S. ownership or control of the strategically important Danish territory, according to France24. This initiated a period of pressure on Denmark, including what the BBC described as "months of threats" from the U.S. administration. The new agreement, while enhancing U.S. military presence, will maintain Greenland under Danish control, a point of cautious optimism for Denmark's government, as noted by SCMP. The specific terms of the deal, including its subject matter, are broad enough to encompass various arrangements, from security to natural resources, ensuring that any U.S.-Danish agreement relating to Greenland will qualify for resolution by the end of 2026.
The precedent
- The United States previously attempted to purchase Greenland from Denmark in 1867 and again in 1946.
- During World War II, the U.S. established military bases in Greenland under an agreement with the Danish ambassador, effectively taking control of its defense.
Context compiled by Crowdtells from the public record — verify before relying on it.
What the coverage agrees on
- The United States and Denmark have reached a security deal concerning Greenland.
- The agreement follows a period of threats from Donald Trump regarding Greenland's status.
- The deal will involve an increased U.S. military presence in Greenland.
- Greenland will remain under Danish control as part of the agreement.
How outlets frame it
- france24: Emphasizes that President Trump's pressure campaign for U.S. ownership and control of Greenland began immediately after his re-election in December 2024.
- scmp: Highlights the cautious optimism of Denmark's government regarding the deal, noting that it bolsters U.S. military presence while keeping the island under Danish control after months of threats.
- BBC: Frames the agreement as a resolution reached after months of threats from Donald Trump to annex the territory, underscoring the de-escalation of previous tensions.
What to watch
The primary focus now shifts to the formal signing of the agreement between the United States and Denmark, which must occur by December 31, 2026, to meet the outlined resolution terms. Observers will be looking for specific details of the deal, such as the scale of the U.S. military presence and any provisions regarding access to natural resources or future governance. Any further diplomatic statements or legislative actions in either Washington or Copenhagen related to Greenland will also be closely scrutinized for their impact on the finalization of the deal.
The numbers behind this
Polymarket prices this December 31 at 97%.
24h +0.3 pts 7d +81.7 pts
$513K traded · $183K in the last day · $143K resting liquidity · $200K open interest
Resolves on: This market will resolve to “Yes” if both Denmark and the United States sign a deal, treaty, or similar international agreement of any kind relating to Greenland by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. Any U.S.–Danish agreement relating to Greenland will qualify, regardless of subject matter, including but not limited to sovereignty, governance, security arrangements, or access to natural resources. Examples of qualifying deals include but are not limited to a treaty that makes any portion of Greenland a U.S. territory or possession (even if the handover date for such territory or possession is later); or, a Guantánamo-style arrangement treaty…
Pricing Polymarket 97%
Sources
- US and Denmark reach deal over Greenland's security after Trump threats bbc.com
- U.S. and Denmark Reach Security Deal on Greenland, Trump Says nytimes.com
- Trump announces agreement with Denmark to secure ‘permanent’ control over Greenland’s security nbcnews.com
- Trump says U.S. to build a 'large Military presence' in Greenland as part of a security deal with it and Denmark cnbc.com
- US and Denmark reach security deal after Trump’s threats to take over Greenland theguardian.com
Frequently asked questions
Trump x Greenland deal signed by...?
Polymarket prices this December 31 at 97%. The reporting broadly agrees.
What do the sources agree on?
The United States and Denmark have reached a security deal concerning Greenland. The agreement follows a period of threats from Donald Trump regarding Greenland's status. The deal will involve an increased U.S. military presence in Greenland. Greenland will remain under Danish control as part of the agreement.
When does this market resolve?
This market resolves on: This market will resolve to “Yes” if both Denmark and the United States sign a deal, treaty, or similar international agreement of any kind relating to Greenland by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. Any U.S.–Danish agreement relating to Greenland will qualify, regardless of subject matter, including but not limited to sovereignty, governance, security arrangements, or access to natural resources. Examples of qualifying deals include but are not limited to a treaty that makes any portion of Greenland a U.S. territory or possession (even if the handover date for such territory or possession is later); or, a Guantánamo-style arrangement treaty…
How are these odds set?
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