An anonymous reader shared this report from the Wall Street Journal: Sending drones and robots into battle, rather than humans, has become a tenet of modern warfare. Nowhere does that make more sense than in the frozen expanses of the Arctic. But the closer you get to the North Pole, the less useful cutting-edge technology becomes. Magnetic storms distort satellite signals; frigid temperatures drain batteries or freeze equipment in minutes; navigation systems lack reference points on snowfields. During a seven-nation polar exercise in Canada earlier this year to test equipment worth millions of dollars, the U.S. military's all-terrain arctic vehicles broke down after 30 minutes because hydraulic fluids congealed in the cold. Swedish soldiers participating in the exercise were handed $20,000 night-vision optics that broke because the aluminum in the goggles couldn't handle the minus 40 degree Fahrenheit conditions.... An arctic conflict would force war planners back to basics. Extreme cold makes the most common components brittle. Low temperatures alter the physical properties of rubber, causing seals to lose their elasticity and leak. Traces of water or humidity freeze into ice crystals that can scratch pumps and create blockages. Wires should be insulated with silicone rather than PVC, which can crack. Oil and other lubricants thicken and congeal. In most standard hydraulic systems, fluid becomes syrupy and can affect everything from aircraft controls to missile launchers and radar masts. A single freeze-up can knock out an entire weapons platform or immobilize a convoy. Even the Aurora Borealis interferes with radio communications and satellite-navigation systems, according to the article.

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A bipartisan right-to-repair provision that would let the U.S. military fix its own equipment faces a serious threat from defense industry lobbyists who want to replace it with a pay-per-use model for accessing repair information. A source familiar with negotiations told The Verge that there are significant concerns that the language in the National Defense Authorization Act will be swapped out for a "data-as-a-service" alternative that would require the Department of Defense to pay contractors for access to technical repair data. The provision, introduced by Sens. Elizabeth Warren (D-MA) and Tim Sheehy (R-MT) in their Warrior Right to Repair Act, passed the Senate in October and has support from Defense Secretary Pete Hegseth, the Army and the Navy. The National Defense Industrial Association published a white paper backing the data-as-a-service model, arguing it would protect contractors' intellectual property. Reps. Mike Rogers (R-AL) and Adam Smith (D-WA), who lead the House Armed Services Committee, outlined similar language in their SPEED Act. Rogers received more than $535,000 from the defense industry in 2024; Smith received over $310,550. The final NDAA is expected early next week.

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