Camp Century was a remarkable and controversial United States military installation built deep within the Greenland ice sheet during the height of the Cold War. The base, which operated from 1959 to 1967, was part of a broader U.S. strategic effort to gain an Arctic advantage against the Soviet Union, but its legacy now intersects with modern geopolitical interest in Greenland’s strategic value. 

What Was Camp Century?

Camp Century was constructed on the ice cap of northwestern Greenland by the U.S. Army Corps of Engineers beginning in 1959. Officially touted at the time as an experimental Arctic research station, the installation featured an extensive network of tunnels chilled into the ice sheet. These tunnels — reaching nearly 10,000 feet in length — housed living quarters, science labs, a hospital, even a barber shop and other community spaces, all connected beneath the ice. A small nuclear reactor, the PM-2A, provided power to the facility. 

Though the Army publicly framed the base as a demonstration of how to conduct science and test construction techniques in extreme Arctic conditions, its true purpose was far more strategic. Camp Century was the first phase of Project Iceworm, a highly classified plan to build a covert network of tunnels that could potentially house nuclear missiles close to the Soviet Union. Under Iceworm, U.S. planners envisioned thousands of miles of covered tunnels with mobile missile launch sites beneath the ice. 

Why Camp Century Was Built

The Cold War context is key to understanding why the U.S. chose such a remote and unforgiving location. By the late 1950s, tensions with the Soviet Union were acute, driven by nuclear arms competition and dramatic events like the launch of Sputnik. Greenland’s ice sheet offered a unique geographic position — closer to Soviet targets than continental U.S. bases — potentially giving American forces strategic reach during a nuclear conflict. 

Project Iceworm was intended to embed that capability deep within the Arctic, in a place experts believed might survive a first strike. However, the entire plan was ultimately unworkable: the ice sheet shifted and distorted the tunnels, and maintenance of the underground infrastructure became impractical. By 1967, the U.S. Army had abandoned Camp Century, decommissioned the nuclear reactor, and left the facility buried beneath accumulating ice. 

Scientific Legacy and Environmental Concerns

Despite its military origins, Camp Century also produced valuable scientific outcomes. Ice cores collected during the base’s operation helped researchers understand Earth’s ancient climate and glacial history. These early studies laid groundwork for modern cryosphere science. 

Today, climate change poses a new dimension to Camp Century’s legacy. As Greenland’s ice melts faster than it accumulates, the buried remains of the camp — including waste materials left behind — are a growing environmental concerns.Some studies warn that melting could expose old fuel, tanks and insulation materials, raising questions about responsibility for cleanup and long-term Arctic stewardship. 

Greenland’s Strategic Importance Then and Now

Camp Century underscores that Greenland has long been more than a scientific curiosity. Its strategic location has made it a focal point of U.S. military and geopolitical thinking since World War II. The United States maintains a presence at Pituffik Space Base under long-standing agreements, and the island’s position is critical for Arctic surveillance, missile defense and airspace monitoring. 

In recent years, interest in Greenland has resurfaced on the global stage. U.S. President Donald Trump is now renewing controversial proposals to acquire the territory, citing national security and concerns over Russian and Chinese influence in the Arctic. Trump and allies framed this interest as necessary to counterbalance strategic rivals, even though Denmark — of which Greenland is a self-governing territory — and Greenland’s own leaders strongly reject any transfer of sovereignty. 

Experts note that despite Trump’s rhetoric, the U.S. already has significant defense access to Greenland through bilateral agreements and NATO cooperation. Critics argue that outright ownership is unnecessary for security and could strain alliances. 

A Legacy Beneath the Ice

Camp Century remains buried beneath Greenland’s ice sheet, largely forgotten for decades and now reemerging in scientific radar surveys. Its story — from an ambitious Cold War military experiment to a potential environmental challenge — reflects Greenland’s complex role at the intersection of defense, science and geopolitics. As interest in the Arctic grows amid climate change and shifting global power dynamics, the legacy of Camp Century offers both historical insight and a cautionary reminder about the long-term impacts of strategic policymaking in remote regions.