Well, so long as they are following the same rules as everyone else and not asking for any special treatment, then I don't see why they shouldn't be allowed to join the military, as long as they pass the psychological/physical requirements.
Considering the fact that they are willing to experience all that comes with the territory, I second this.
God bless you and our troops always!!!
Holly
P.S. And hey, if they don't make it back alive, they are just how ever many less transgender people to deal with for those of you who resent them enough.