– War on the Rocks – This October, 40,000 U.S. and allied troops will converge on the sea and in the air over Norway for a NATO exercise named Trident Juncture. This will be NATO’s largest exercise since 2002 and will involve 30 allied and partner countries. One-hundred thirty aircraft and 70 ships will churn the waters of the Norwegian Sea and darken the skies above it, while thousands of allied land troops will operate in Norway in what is called a NATO “Article 5” exercise. Article 5 is that part of the North Atlantic Treaty in which members pledge to come to the aid of an ally under attack. For the purposes of the Trident Juncture exercise, that ally is Norway.