While few details of the exact work at Pituffik have been made public, the improvements come during a time of intense focus on Greenland.

Rising Arctic temperatures are reshaping the geopolitics of the far North. As ice retreats fromGreenland’s interior, dormant military legacies are surfacing, revealing not only forgotten infrastructure but potentially hazardous waste.

The United States military is upgrading a long-abandoned former Cold War naval base in the Caribbean, a Reuters visual investigation has found, suggesting preparations for sustained operations that could help support possible actions inside Venezuela.