In Hamdan vs. Rumsfeld, the U.S. Supreme Court held that: Question 21 options: Even though the government was authorized to detain the petitioner as an enemy combatant, he was entitled to challenge his classification and to be afforded a fair opportunity to rebut the government's factual assertions before a neutral decisionmaker. The Court upheld the government's authority to try eight Nazis who illegally entered the country by military tribunal, arguing they were unlawful combatants. The use of a military commission to try the petitioner, a Guantanamo Bay detainee, was illegal and lacking the protections required under the Geneva Conventions as well as the United States Uniform Code of Military Justice. U.S. law confers jurisdiction on federal courts over habeas corpus petitions. Incarcerated captives, whether American citizens or not, have the right to challenge their imprisonment in federal court