 There it was responsible for the air defense of an area that included Western and Northern New York and parts of Ontario, Canada.It was reunited with one of its former units, now designated the 47th Fighter-Interceptor Squadron (FIS), which was already at Niagara Falls, where it had been assigned to the 518th.The group was also assigned several support squadrons to perform its mission as USAF host unit for the active duty portions of Niagara Falls Airport.