 Complete the following phrase:  At Midway Island, United States Marine Corps fighter squadron VMF-221 operated a mixed group of 20 Brewster F2A-3 Buffalos and seven Grumman F4F-3 Wildcats. They were originally assigned to as part of a relief force bound for Wake Island, but were diverted to Midway instead after the force was controversially recalled on 22 December 1941. Wake Island 