AURORA, Colorado -- More attendees are wearing suits than fatigues. There are empty parking lots and no wait at the hotel coffee shop. Scattered applause rises from the participants in a half-filled resort ballroom. These are the sights and sounds of what is, typically, one of the busiest military conferences of the year. This week's Air and Space Forces Association Warfare Symposium at the Gaylord Rockies Resort and Convention Center -- one of two major professional development conferences