I'm not saying gays should not be allowed in the Military but changing a rule just because other countries allow something isn't the way to go, every country is different and needs to make laws that suit them.
I'm stating that all our allies allow gays, nothing more.
If you want reasons WHY gays should be allowed to serve look at Lt. Dan Choi, who was a forward air controller who SPOKE ARABIC!!!!!!
That meant he could understand the enemy IN A WAR ZONE.
And, he was fluent, which is why he was so valuable. Out of our ENTIRE MILITARY, we only have 500 Arabic speaking troops. When he was discharged for being gay (after several honorable years of service), we lost a valuable asset, making the policy stupid as well as does harm to our military.
There's also a 19 year Air Force pilot (who saved a whole squad by himself in his aircraft, resulting in the Distinguished Flying Cross with combat insignia) who was kicked out because someone saw his e-mails and figured out he was gay.
Know how much it costs to replace a pilot? Roughly 1.5 million dollars. Yet another waste.
And there are many stories like that. Having served with gays, I've noticed that they pay better attention to detail than their straight counterparts.
Attention to detail is what they drill into you from boot camp on.