格陵兰的雷达系统无法探测超音速导弹, 美国缺乏协调的北极防御, Greenland’s radar systems can’t detect hypersonic missiles, and the U.S. lacks a coordinated Arctic defense, experts warn.

格陵兰位于Pituffik航天基地的早期预警雷达系统是冷战以来探测洲际弹道导弹的关键系统,但无法探测飞过马赫5号的超声波威胁,国防专家说。 Greenland’s early warning radar systems at Pituffik Space Base, critical since the Cold War for detecting intercontinental ballistic missiles, cannot detect hypersonic threats traveling over Mach 5, defense experts say. 美国在格陵兰缺乏一个综合的空中和导弹防御系统,使基地处于脆弱地位。 The U.S. lacks an integrated air and missile defense system in Greenland, leaving the base vulnerable. 批评者敦促使用爱国者、美国航天局、SHORAD和先进的传感器进行分层防御,例如超视距雷达和机载平台,以适应北极的条件。 Critics urge a layered defense using Patriot, NASAMS, SHORAD, and advanced sensors like over-the-horizon radars and airborne platforms, adapted for Arctic conditions. 2025年6月,美国北方司令部承担了格陵兰的责任,这反映了它在保卫家园方面日益重要的作用,但与丹麦和美国多个司令部的协调仍然是一项挑战。 In June 2025, U.S. Northern Command assumed responsibility for Greenland, reflecting its growing role in homeland defense, but coordination with Denmark and multiple U.S. commands remains a challenge.