The Arctic's extreme cold is breaking even the world's most advanced military tech

The Arctic doesn't care how advanced your technology is

by · TechSpot

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In context: For all its strategic allure, the Arctic remains a frontier that resists human technology. While melting sea ice is opening new routes and raising interest in the region's wealth of minerals and energy resources, the environment continues to overwhelm machines designed for milder climates. Whether future wars – or future discoveries – can be fought and won there depends as much on materials science and resilient design as on political ambition.

In the global race to control the Arctic, the challenge isn't just geopolitical – it's technological. As governments plan for the possibility of conflict in the planet's coldest terrain, they are discovering that even their most advanced weapons and tools falter under the region's punishing conditions.

Extreme temperatures, magnetic interference, and the scarcity of reliable navigation signals quickly reduce cutting-edge systems to costly failures. During a seven-nation exercise in northern Canada earlier this year, US all-terrain vehicles designed for the Arctic stopped working after just 30 minutes when hydraulic fluids solidified in the cold. Swedish troops had similar trouble when $20,000 night-vision goggles failed because the aluminum casings cracked at – 40 °F.

Cold weather doesn't merely inconvenience equipment – it transforms basic materials. Rubber seals stiffen and leak, traces of moisture form ice that shreds pumps, and standard wiring sheathed in PVC can fracture like glass. Even oil and lubricants congeal, turning syrupy inside hydraulic systems. A single freeze-up can disable an aircraft control system, stall missile launchers, or immobilize radar masts and vehicles.

In this environment, even power supply becomes a logistical puzzle. One company recently proposed a battery charger for Sweden's armed forces weighing more than 400 pounds – so heavy it would bog down in powder snow before reaching soldiers in the field. "The problem right now is that many in the industry have no idea what the guys on the ground need," Frederik Flink, commander of the international training wing at Sweden's Subarctic Warfare Center, told The Wall Street Journal. He added that although his troops know what they want from equipment, their ideas are "probably not technically realistic."

The modern battlefield elsewhere – especially in Ukraine – has relied heavily on drones, rapid data transfer, and AI analytics. But the Arctic environment makes those tools unreliable. Off-the-shelf quadcopters powered by batteries can't fly far in subzero air, and digital communications degrade when geomagnetic storms sweep across the polar sky.

Drones for this region must run on jet fuel or diesel, include deicing systems, and withstand strong winds, making them heavy enough to require trailers or runways for launch.

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AI, too, loses relevance. In eastern Ukraine, dense infrastructure and abundant data allow algorithms to process information in near real time. Arctic Scandinavia and Finland, by contrast, have only about five people per square mile – leaving almost no visual or logistical inputs for AI to analyze. The scarcity of roads, sensors, and power grids strips smart systems of the data that gives them value.

Even the heavens add to the difficulty. The Aurora Borealis – beautiful to tourists, disastrous for military planners – creates magnetic disturbances that disrupt radio and satellite communication. Satellites in equatorial orbit appear low or vanish entirely over the curve of the Earth at high latitudes, limiting signal reception. That makes jamming efforts by neighboring states exponentially more effective.

Norway's communications regulator, Nkom, recorded six GPS disruptions in Eastern Finnmark in 2019. By 2022, the total jumped to 122, and by late 2024 the interference became so routine that the agency stopped keeping count.

To address the issue, more than 100 companies convened in September on the Norwegian island of Andøya for "Jammertest," an annual stress trial for Arctic communications hardware. They tested everything from atomic clocks to antennas against the region's radio interference. Heidi Andreassen, partner and founder of Testnor, which organizes the event, said she believes the jamming stems from Russian self-defense systems shielding the Kola Peninsula rather than direct acts of aggression. "In the Arctic, if you have very challenging weather conditions and no line of sight, then jamming can be critical," she said. "Just a few years ago, this was not something people cared about because it was rare. But now, it has become a daily problem."

The adaptation effort is increasingly led by the private sector. Inspired by lessons from Ukraine, new ventures are taking on the Arctic problem with designs that borrow from space exploration. British explorers Ben Saunders and Frederick Fennessy have launched Arctic Research and Development, a startup that builds autonomous systems and mapping software specifically for polar use. Both veterans of long-distance Arctic expeditions, they liken their work to creating a "miniature space program."

Their team – a mix of experts in space technology, intelligence, climate science, and defense – tests equipment inside a specialized cold chamber in rural England that can reproduce temperatures down to – 94 °F.

Among their prototypes is Icelink – a 40-pound, suitcase-sized orange hub that combines high-bandwidth communications, GPS antennas, and long-lasting batteries. Saunders knows firsthand how fragile even small components can be: on a previous solo expedition to the North Pole, a broken ski binding forced him to abandon a $200,000 trip.