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1951 US-Denmark Agreement on Thule Air Base

The 1951 Technical Schedule to the U.S.-Denmark Agreement allowed the United States to construct and operate a major military installation at Thule, defining defense areas and minimizing public and Soviet scrutiny.

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Jan 20, 2026
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What changes did the 2004 U.S.–Denmark update to the Greenland defence agreement introduce, in full detail?

The 6 August 2004 Igaliku update to the 1951 U.S.–Denmark Defense Agreement formally amended and supplemented the original treaty to recognize Greenland’s changed constitutional status and to add Gree...

Jan 21, 2026
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How did the 1941 Greenland‑U.S. defence arrangement under Ambassador Henrik Kauffmann influence postwar negotiations?

The April 9, 1941 “Agreement Relating to the Defense of Greenland,” signed by Danish Ambassador Henrik Kauffmann and U.S. Secretary Cordell Hull, gave the United States broad wartime rights to defend ...

Jan 22, 2026
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How has U.S. military basing in Greenland evolved since World War II and what legal agreements govern it?

military basing in began as an emergency arrangement in 1941 and expanded into a network anchored by Thule (now Pituffik) under a sweeping 1951 defense agreement with ; most facilities were later clos...

Jan 23, 2026

What legal differences exist between the 1951 agreement and the 2004 Igaliku modification regarding U.S. access to Pituffik (Thule) base?

created broad U.S. rights to establish and use “defense areas” . narrows that legal footprint by formally concentrating U.S. access to the Pituffik (Thule) base, embeds Greenlandic authorities into co...

Jan 18, 2026

What legal frameworks govern foreign troop deployments to Greenland under the 1951 US-Denmark agreement and Danish sovereignty arrangements?

The 1951 U.S.–Denmark “Defense of Greenland” agreement authorizes U.S. forces to establish, operate and use designated “defense areas” in Greenland as part of NATO collective-defense planning, but it ...

Jan 17, 2026

How did the secret 1951 Technical Schedule shape the construction and operation of Thule/Pituffik Air Base?

The Top Secret 1951 Technical Schedule to the U.S.-Denmark Agreement created the legal and geographic foundation that allowed the United States to plan, construct and operate a major military installa...