"Countries that allow gays to serve in the military:

Australia, Austria, Bahamas, Belgium, Britain, Canada, the Czech Republic, Denmark, Estonia, Finland, France, Ireland, Israel, Italy, Lithuania, Luxembourg, the Netherlands, New Zealand, Norway, Slovenia, South Africa, Spain, Sweden and Switzerland"

These are not first rate, state of the art, military forces either.
Think about it, NATO includes many of these countries, all of them combined cannot defeat the Taliban, the U.S has to go in and relieve them.