Because I am sick to death of people who sit on the fat ass in their comfortable computer chairs dictating how the men and women of the U.S. military are treated or what religion they worship. Bottom line, the DoD saw fit to provide this facility for some Marines and I totally support that.
None of which answers why you can't answer a simple question that's been posted to you.
How do you know that Muslims had to pray outside before this mosque was built? You regularly go around making sarcastic statements that have no basis in fact?
And how lovely that because you're annoyed with some freepers that you think Jews and Muslims should pray together in a mosque.
Do you totally support EVERYTHING that DoD sees fit to do? Is that the basis of your position?