Task Force 121 was a United States Department of Defense special operations task force. TF121 was a multi-service force from Joint Special Operations Command, made up of operators from the U.S. Army's Delta Force, 75th Ranger Regiment, and 160th Special Operations Aviation Regiment, the U.S. Navy's SEAL Team Six, the CIA's Special Activities Division, U.S. Air Force Combat Controllers, Pararescuemen, Tactical Air Control Party operators, and Special Operations Weather Technicians, the Aviation Tactics Evaluation Group (AvTEG), and the Joint Communications Unit. Two companies of armor from the U.S. Army 4th Infantry Division and later two cavalry troops from 1/1 Cav 1st Armored Division provided armor support.

Saddam Hussein, the deposed president of Iraq, was captured by the United States military in the town of Ad-Dawr, Iraq on 13 December 2003. Codenamed Operation Red Dawn, this military operation was named after the 1984 American film Red Dawn.