OSLO—Military forces from 31 countries began NATO’s largest exercise in decades, stretching from the Baltic Sea to Iceland, on Oct. 25, practicing military maneuvers close to Russia, which itself held a huge military drill last month.
As temperatures fell below freezing across training grounds in central Norway, giving a taste of what it means to defend NATO’s vast northern flank, some 50,000 troops, 250 aircraft and 10,000 tanks, trucks and other land-based vehicles were ready.
