United States v. Khalid Sheikh Mohammed

KSM II
CourtExpeditionary Legal Complex, Guantanamo Bay, Cuba
Full case name 9/11: Khalid Shaikh Mohammad et al. (2)
Defendants in United States v. Khalid Sheikh Mohammed, et al.
Khalid Sheikh Mohammed
Walid bin Attash
Ramzi bin al-Shibh
Mustafa al-Hawsawi

United States v. Khalid Sheikh Mohammed, et al. (or "KSM II") is a trial of five alleged al-Qaeda members accused of orchestrating the September 11, 2001 attacks. Charges were announced by Brigadier General Thomas W. Hartmann on February 11, 2008 at a press conference hosted by the Pentagon. The accused are Khalid Sheikh Mohammed, Walid bin Attash, Ramzi bin al-Shibh, Ammar al-Baluchi and Mustafa al-Hawsawi. The trial for Ramzi bin al-Shibh is formally separate.

The trial is held in front of a U.S. military commission court at the Expeditionary Legal Complex in Guantanamo Bay, Cuba. In 2009 the case was planned to be transferred to a civilian court of the Southern District of New York, which was effectively prevented by an Act created by Congress and signed by President Obama in 2011. The pretrial proceedings started in Guantanamo Bay on May 5, 2012.

As of spring 2025, the pretrial proceedings are ongoing.