Pleased to see that my prediction was correct. I felt all along that when the military was told that gays would be accepted as full members, that they'd salute and get cracking on making gays welcome within their ranks. There were a number of skeptics, Marine Commandant General. James Amos and Senator John McCain (R-AZ) among them. General Amos said: "...he addressed some 12,000 Marines about the change and “everyone said, ‘Sir, we got it. We’re going to do this thing.‘”
McCain felt that 12% of the military would up and quit in response to gays coming out, but although it's impossible to say with absolute certainty why people may decide not to re-enlist, the numbers of those not re-enlisting are essentially unchanged from before. There has been no surge towards the exit doors.