The Greenland-Iceland-United Kingdom gap is not a legacy Cold War concept kept alive by strategic nostalgia. It is one of NATO’s most consequential operational corridors, and it is becoming more demanding, not less, as the Arctic and North Atlantic merge into a single theater of great-power competition. Russian naval and undersea activity tied to the … Continue reading From Chokepoint to Corridor: MV-75 Cheyenne in the Defense of the GIUK Gap