On 5 November 2009 , the regiment was called upon again , not to face an overseas threat , but to help protect the members of its own community when a lone attacker opened fire on Soldiers and civilians at Fort Hood 's Soldier Readiness Center . Sabre Squadron , the installation 's designated crisis reaction battalion at the time of the incident , was alerted to deploy back from training in the field and assist Fort Hood Emergency Services with cordoning the crime scene while the police searched for additional suspects . Joined by Soldiers from Tiger , Thunder , and Muleskinner , Sabre Squadron manned entry control points around the post to systematically search vehicles leaving the installation later that evening and the continued to secure the gates for several days after the attack . When President Obama visited Fort Hood on 10 November to help memorialize the twelve soldiers and one civilian who died in the attack , the regiment teamed with the Directorate of Emergency Services again to secure the route for the official convoy from the airfield to the III Corps headquarters
opened fire on Soldiers and civilians
2009 Fort Hood shooting
3rd Cavalry Regiment (United States)