 The group was again activated in 1955 to replace the 518th Air Defense Group as part of Air Defense Command's Project Arrow, which replaced units formed during the Cold War with those that had a distinguished history in the two world wars.It performed the air defense mission at Niagara Falls Municipal Airport, New York until it was discontinued in 1960 and its mission assumed by the New York Air National Guard.In July 1962, Tactical Air Command organized the 15th Tactical Fighter Wing as the second McDonnell F-4 Phantom II wing at MacDill Air Force Base, Florida.