US Marines joined tens of thousands of NATO troops in northern Norway for Exercise Cold Response 2026, enduring grueling Arctic conditions as they trained to defend NATO’s High North. Led by Norway and taking place in Norway and Finland, the exercise brought together Allied forces from across multiple domains, including land, sea, air, cyber and space, in a complex operational environment. Activities ranged from large-scale manoeuvres and live-fire drills to amphibious operations and air