Following the end of the U.S. military's ban on service by open gays and lesbians, "Don't ask, don't tell," in September 2011, Admiral Mike Mullen, Chairman of the Joint Chiefs of Staff, noted that DOMA limited the military's ability to extend the same benefits to military personnel in same-sex marriages as their peers in opposite-sex marriages received, notably health benefits. Same-sex spouses of military personnel were denied the same access to military bases, legal counseling, and housing allowances provided to different-sex spouses.