Event Brief
Trump signs Arctic and North Atlantic security deal
By The BriefBrief · Sources (37)
Filed: Sep 18, 2026 at 6:05 PM ET
UPDATED Sep 22, 2026 at 11:07 PM ET
Summary: Eight months after Trump threatened to annex Greenland, he signed an agreement on security in the Arctic and North Atlantic at the United Nations with the prime ministers of Greenland and Denmark. The deal amends a 1951 U.S.-Denmark arrangement, gives the U.S. control and military access, and requires ratification by Danish and Greenlandic lawmakers.
WHO: Donald Trump; prime ministers of Greenland and Denmark
WHAT: Trump signed an agreement on security in the Arctic and North Atlantic with Greenland and Denmark, amending an earlier U.S.-Denmark deal.
WHEN: Sep 23, 2026
WHERE: United Nations
WHY: To end the dispute over U.S. security arrangements for Greenland and set out amended terms for military access and control in the region.
How this story developed (showing 12 of 12 earlier reports)
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Trump signs security deal with Greenland and Denmark
· Sep 22, 2026 at 10:06 PM ET
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Trump to sign Greenland-Denmark agreement at UN
· Sep 22, 2026 at 6:00 AM ET
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U.S.-listed Greenland stocks surge after Trump-Denmark security pact
· Sep 21, 2026 at 7:04 AM ET
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US, Denmark and Greenland strike Arctic security deal
· Sep 21, 2026 at 4:09 AM ET
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Trump says U.S. and Denmark deal boosts Greenland presence
· Sep 20, 2026 at 2:20 PM ET
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Trump says US got permanent security control in Greenland
· Sep 20, 2026 at 8:17 AM ET
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Trump announces US deal with Denmark on Greenland
· Sep 20, 2026 at 12:07 AM ET
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Trump announces security deal giving permanent control in Greenland
· Sep 19, 2026 at 6:04 PM ET
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Trump says deal gives U.S. permanent security control in Greenland
· Sep 19, 2026 at 11:04 AM ET
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Trump says US reached security deal for Greenland
· Sep 19, 2026 at 7:00 AM ET
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Trump says US will have permanent control of Greenland
· Sep 19, 2026 at 12:30 AM ET
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Trump says US has deal for permanent security control in Greenland
· Sep 18, 2026 at 6:05 PM ET
Sources (37):
ABC Australia,
ABC News,
ARY News,
Al Jazeera,
BBC News,
Bloomberg,
Brussels Signal,
CBS News,
CNBC Top News,
Dawn Pakistan,
Defense News,
Deutsche Welle,
Euronews,
Financial Times,
Fox News,
France 24,
Global News Canada,
Japan Times,
Jerusalem Post,
Military Times,
NBC News,
NPR,
New York Times,
PBS NewsHour,
Politico Europe,
Sky News,
South China Morning Post,
Stars & Stripes,
Straits Times,
Tampa Free Press,
Tehran Times,
The Hindu,
The Independent,
WBIR 10News,
WSJ World News,
WTSP 10 Tampa Bay,
Washington Post
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How this brief is built: The BriefBrief uses multi-source information fusion to correlate reporting across sources, identify related developments, and continuously update a structured WHO, WHAT, WHEN, WHERE and WHY event picture. Pattern arcs, source analysis, and velocity indicators provide deeper analysis in our MI Console.
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