The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Stated as firm, per the agreement text: "Done at New York on the 22nd day of September, 2026"; the clock time is not reported (NBC6's schedule listed "10:40 AM: President Trump participates in a trilateral signing" but a White House[2] photo is stamped 11:19 AM EDT), so it is held as an all-day date.
The signed text itself: "Done at New York on the 22nd day of September, 2026"; names the Narsarsuaq and Mestersvig defense areas, Article IX non-NATO bar, Article XI "does not have an end date", and entry into force by diplomatic note; amends the 1951 Defense Agreement.[1]
Danish Prime Minister's Office confirms the signing by Nielsen, Frederiksen and Trump at UN Headquarters in New York and that "The agreement will enter into force subject to the necessary national parliamentary procedures."[1]
AP wire: signed on the sidelines of the UNGA; Pituffik modernized, defense areas at Narsarsuaq and Mestersvig; no non-NATO installations; "does not have an end date" and binds an independent Greenland that stays in NATO.[1]
Names Pituffik, Narsarsuaq and Mestersvig, says the deal "blocks non-NATO countries from establishing bases" with tighter screening of non-NATO/EU investment, and quotes Nielsen that it amends the 1951 pact.[1]
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United States Army
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