U.S. describes the move as as `` unpardonable provocation '' Heavy bombers taking part in U.S.-South North Korea exercises . Foal Eagle : Missions show `` North Korea commitment to the security of our allies and partners '' B-52s flying from base on North Korea .
North Korea describes the move as as `` unpardonable provocation '' Heavy bombers taking part in U.S.-South Korea exercises . Pentagon : Missions show `` U.S. commitment to the security of our allies and partners '' B-52s flying from base on Guam .