Overview
A declassified Cold War-era U.S. Army proposal reportedly envisioned turning Greenland’s ice sheet into a vast underground missile complex, with up to 600 nuclear-armed missiles concealed in roughly 2,500 miles of tunnels. The concept is discussed in a Military.com report published Nov. 6, 2026, about Camp Century, a nuclear-powered Army installation built beneath Greenland’s ice. The proposal reflected Cold War efforts to create dispersed, survivable nuclear forces that would be difficult for the Soviet Union to locate and destroy.
The plan was not necessarily carried out in the form described. The available source material presents the tunnel network as a proposed expansion or test of ideas associated with Camp Century, rather than evidence that Greenland was ultimately converted into a fully operational missile field. That distinction is significant: the scale of the concept can be mistaken for the scale of the facility that was actually built.
Camp Century’s Role
Camp Century was established as an experimental military base beneath the ice. Its construction demonstrated that the Army could excavate and maintain a functioning installation in Greenland’s extreme environment. The base was powered by a portable nuclear reactor and included facilities intended to support personnel and operations under the ice.
Although Camp Century was publicly associated with scientific and engineering work, its military significance was broader. The installation served as a practical test of whether tunnels cut through the ice could provide concealment, protection and logistical support for strategic weapons. In that sense, it was reportedly a proving ground for a much larger and more ambitious concept.
The Missile Proposal
The proposed network would have stretched for approximately 2,500 miles, creating a system of underground routes and launch positions across the Greenland ice sheet. Up to 600 missiles could have been distributed throughout the tunnels, according to the report’s summary of the declassified plan. Dispersal was central to the concept: rather than concentrating weapons at a small number of identifiable sites, the Army could theoretically move or rotate them through a broad subterranean network.
Such an arrangement was intended to complicate Soviet surveillance and targeting. Greenland’s remote location, proximity to the Arctic approaches and association with North American defenses made it strategically valuable during the Cold War. However, operating a network of that size beneath moving ice would have presented substantial engineering, maintenance and environmental challenges.
Why the Concept Was Difficult
The Greenland ice sheet is not a static mass. It shifts, compresses and deforms over time, creating problems for tunnels, roads, utilities and launch facilities. Even a relatively small underground base required continual upkeep, while a missile network spanning thousands of miles would have demanded enormous resources and reliable transportation and communications systems.
The proposal therefore illustrates both the ambition and the limits of Cold War military planning. Nuclear weapons strategy encouraged officials to examine extreme methods of concealment and survivability, but technical feasibility, cost and changing strategic requirements could prevent such concepts from advancing beyond the planning stage.
Historical Significance
Camp Century’s history offers a window into how military infrastructure and nuclear strategy intersected beneath the Arctic ice. The declassified proposal also helps explain why the base has attracted continuing historical attention: it was more than an isolated engineering experiment and may have been connected to an effort to test the foundations of a far larger weapons system.
The supplied material does not include additional documentation, official commentary or evidence that the full missile plan was implemented. The 600-missile network should therefore be understood as a reported Cold War proposal, not as confirmation that such an arsenal was deployed beneath Greenland.
