The U.S. Air Force, British Royal Air Force and Royal Norwegian Air Force scrambled multiple P-8 anti-submarine warfare aircraft in the High North [Arctic region] on August 27 in response to the presence of a Russian submarine, which posed a potential threat to the U.S. Navy aircraft carrier USS Gerald Ford in the region.
USS Gerald Ford
Norwegian P-8s operating from Evenes Air Base had by the following day carried out three sorties, while British P-8s flying from RAF Lossiemouth in Scotland had completed eight missions, with an unknown number of flights made by U.S. Navy P-8s. Western sources described this as as “unusually large and sustained surge of activity.”
The class of Russian submarine thought to have been operating in the area remains unconfirmed, although the levels of concern in appeared to have sparked indicate that it may have been one of the Navy’s new Yasen Class nuclear powered ships, which are among the very quietest in the world.