Joint Chiefs of Staff Chairman Michael Mullen based his opposition to the military's "Don't Ask, Don't Tell" policy on a fallacy. DADT does not require Jewish soldiers to "lie about who they are," it only requires that they serve with discretion. Jews are free to serve in the military as long as they keep their private business to themselves.
If openly Jewish soldiers were allowed to serve in the military, this would have an irreparably harmful effect on unit cohesion. The bonds of trust that are key to military life would be unsustainable if soldiers knew that their fellow soldiers were Jews. Can we reasonably ask a young recruit to trust the comrade he shares a foxhole with if he knows he is a Jew?
Moreover, one can not help but fear that the repeal of DADT is only the prelude of a further expansion of the Jewish agenda. Next we will no doubt be asked to allow a Jewish soldier to bring his or her Jewish spouse and Jewish children to live on base, so that they may make public display of their Jewish lifestyle for other military families to see. One can only wonder what offenses to good taste and decency will result then.