Arctic Chinook is a joint U.S. Coast Guard and U.S. Northern Command sponsored exercise on the U.S. State Department approved list of Arctic Council Chairmanship events. Concept is to conduct a live field training exercise (FTX) of the Arctic SAR Agreement that will exercise a response construct applicable across the Arctic region. Intent is to build upon Arctic Zephyr TTX series by exercising elements of the Arctic SAR Agreement: interoperability, cooperation, information sharing, SAR services, and joint exercise review, through the conduct of an Arctic Mass Rescue Operation (MRO) live exercise with international, interagency and industry participation.