The United States military ends its "don't ask, don't tell" policy, allowing gay men and women to serve openly for the first time.

"Don't ask, don't tell" (DADT) was the official United States policy on military service of homosexual people for a period of over 17 years, starting in the mid-1990s. Instituted during the presidency of Bill Clinton, the policy was issued under Department of Defense Directive 1304.26 on December 21, 1993, and was in effect from February 28, 1994, until September 20, 2011. The policy prohibited military personnel from discriminating against or harassing closeted homosexual or bisexual service members or applicants, while barring openly gay, lesbian, or bisexual persons from military service. This relaxation of legal restrictions on service by gays and lesbians in the armed forces was mandated by Public Law 103–160, which was signed November 30, 1993. The policy prohibited people who "demonstrate a propensity or intent to engage in homosexual acts" from serving in the United States Armed Forces, because their presence "would create an unacceptable risk to the high standards of morale, good order and discipline, and unit cohesion that are the essence of military capability".