The Guantanamo Bay detention camp, also known as GTMO (/ˈɡɪtmoʊ/ GIT-moh), GITMO (/ˈɡɪtmoʊ/ GIT-moh), or simply Guantanamo Bay, is a United States military prison within Naval Station Guantanamo Bay (NSGB), on the coast of Guantánamo Bay, Cuba. It was established in 2002 by President George W. Bush to hold terrorism suspects and "illegal enemy combatants" during the "war on terror" following the September 11 attacks. As of January 2025, at least 780 people from 48 countries have been detained at the camp since its creation, of whom 756 had been released or transferred to other detention facilities, 9 died in custody, and 15 remain.
Following the September 11 attacks, the U.S. led a multinational military operation against Taliban-ruled Afghanistan to dismantle al-Qaeda and capture its leader, Osama bin Laden. During the invasion, in November 2001, Bush issued a military order allowing the indefinite detention of foreign nationals without charge and preventing them from legally challenging their detention. The U.S. Department of Justice claimed that habeas corpus—a legal recourse against unlawful detention—did not apply to Guantanamo because it was outside U.S. territory. In January 2002, a temporary detention facility dubbed "Camp X-Ray" was created to house suspected Al-Qaeda members and Taliban fighters. By May 2003, the Guantanamo Bay detention camp had grown into a larger and permanent facility that housed over 680 prisoners, most without formal charges. The Bush administration maintained it was not obliged to grant prisoners protections under the U.S. Constitution or the Geneva Conventions, since the former did not extend to foreign soil and the latter did not apply to "unlawful enemy combatants". Humanitarian and legal advocacy groups claimed these policies were unconstitutional and violated international human rights law; several landmark U.S. Supreme Court decisions found that detainees had rights to due process and habeas corpus but were still subject to military tribunals.