The United States is quietly preparing tens of millions of dollars in upgrades to its only military base in Greenland, federal records show, as attention on the Arctic island intensifies amid U.S. security concerns.
The work at Pituffik Space Base, formerly known as Thule Air Force Base, includes improvements to the two-mile-long runway, enhanced lighting for landing and taxiways, repairs to facilities such as the Dundas dining hall, and a new boat to keep the port free of ice, according to federal contracting documents reviewed by Reuters.
About 150 U.S. military personnel are stationed at the Cold War-era base, alongside hundreds of Danish, Greenlandic, and Canadian service members and contractors. The base was renamed in 2023 to honor the native Greenlandic people and culture. It hosts the northernmost deepwater port operated by the U.S. Department of Defense and serves as a hub for satellite communications and monitoring near-Earth space, including detecting ballistic missile launches.
“The United States needs Greenland,” President Donald Trump wrote in a Jan. 14 social media post, echoing longstanding concerns about Arctic security. Cold War planners originally built the base, with Danish permission, because of its strategic location roughly halfway between Moscow and Washington. Greenland is a self-governing territory within the Kingdom of Denmark, a NATO member.
The current upgrades, while significant, do not appear to indicate a major expansion of the base or a shift in its mission. Runway improvements focus on lighting systems critical during the Arctic winter, when darkness can last more than three months. Some contracting documents also reference classified work that may involve U.S. military personnel or specialized contractors.
Several projects have not yet been formally awarded, in part due to logistical challenges of transporting materials and personnel to the remote base during the short summer construction window. Contracts call for engineers and other experts licensed in Denmark.
Pituffik’s location on Greenland’s western edge, near Baffin Bay and roughly 1,000 miles from the capital Nuuk, exposes personnel to extreme polar conditions. The base uses “happy lamps” to simulate sunlight during the dark winter months, while blackout shades are deployed in summer when the sun does not set for nearly four months.
During the Cold War, Pituffik was considered for Project Iceworm, a plan to bury nuclear missile silos beneath Greenland’s ice sheet. The project was abandoned after scientists found the ice moved faster than expected.
Military officials and some analysts say Greenland’s strategic importance is growing as Russia and China expand Arctic operations. Melting sea ice is opening new shipping routes, while the island holds deposits of rare earth minerals used in smartphones, MRI machines, and advanced weapons systems.
The base is jointly staffed by the U.S. and Danish militaries. Last April, the Trump administration removed the base commander after remarks she made to staff following a controversial Greenland trip by then-Vice President JD Vance, citing concerns that her message undermined U.S. policy.
