The letter, signed by Acting SecAF John P. Roth, the Ministers of Defense of Denmark, Finland, Norway and Sweden, demonstrates continued support of the Arctic Challenge Exercise, one of Europe’s largest tactical air exercises. Executing the Arctic challenge advances the Department of the Air Force’s Arctic Strategy by deepening defense cooperation between the five Arctic nation signatories. DoD photo by U.S. Army Sgt. Amber I. Smith #Arctic #ArcticChallenge #Norway #Sweden #Denmark #Finland #us #defense #ministerofdefense #airforce #usaf #secaf