This list looks beyond formal service designations to examine the five largest and most strategically significant installations traditionally associated with US Air Force operations: two of the most consequential Arctic sites, Pituffik Space Base in Greenland and Clear Space Force Station in Alaska, are now operated by the US Space Force.

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

Military facilities in Puerto Rico are being revived following the U.S. capture of Venezuelan's leader, leaving residents wondering whether it's short-lived and what will come next.

Top Stories from Jan. 8, 2026 OKALOOSA COUNTY, Fla. (WKRG) — Roads near the Eglin Air Force Base in Okaloosa County are set to close temporarily. According