The Air Force will hold its first launch competition in almost 10 years, regardless of whether one of two expected bidders declines to participate.Air Force spokeswoman Alicia Garges said Wednesday the service would not cancel the Global Positioning System (GPS) III launch competition if United Launch Alliance (ULA) decides not to bid. ULA CEO Tory Bruno said Friday the company would not make an offer unless it gets permission to acquire additional Russian-developed RD-180s, either legislatively or through a national…