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What Is the "Golden Dome"? Here's What to Know About Trump's Missile Defense Plans

Trump aims to secure Greenland to deploy the multilayer Golden Dome missile defense system, citing its strategic Arctic location under key intercontinental ballistic missile flight paths.

  • On Wednesday, President Donald Trump again pushed U.S. ownership of Greenland as vital to the `Golden Dome` missile-defence plan and announced a framework for Arctic security.
  • Greenland's Arctic position places it along the shortest ICBM routes from China and Russia to the U.S., while Pituffik Space Base hosts radar coverage monitoring those polar flight paths.
  • The proposed system would combine space-based interceptors and sensors with an initial $25 billion investment, but long-term costs may be 20 times higher and 36,000 interceptors could be needed for ten ICBMs.
  • Denmark and Greenlanders have reacted with alarm as the U.S. already operates in Greenland under the 1951 defence agreement, with Canada and Bill Blair expressing interest earlier this year.
  • But experts see holes in the argument, noting Trump’s 2029 operational claim is unrealistic, with costs over $200bn and protection near 100% dismissed, while new sensors reduce Greenland’s importance.
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Washington Times broke the news in United States on Thursday, January 22, 2026.
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