At Fort Hood, Texas, Major Nidal Hasan, an Army psychiatrist, opened fire on fellow soldiers during a mass shooting incident that led to the deaths of 13 individuals and injuries to 32 others. The shooting began at approximately 1:30 PM at the Soldier Readiness Processing Center, where soldiers were preparing for deployment. Hasan, who had been experiencing significant psychological stress and had reportedly expressed extremist views, used two handguns during the attack, resulting in a chaotic and deadly scene. Witnesses described the horror of the incident, with many soldiers attempting to help the wounded while others sought cover.

In the aftermath of the shooting, the military and national leaders called for increased security measures at military installations, as well as deeper investigations into the mental health of service members. Following Hasan's arrest, he was held for over two years before his military trial commenced. In 2013, Hasan was found guilty on 13 counts of premeditated murder and was subsequently sentenced to death. The incident sparked national conversations about the potential for violent extremism within the military, as well as the psychological struggles faced by soldiers returning from combat.

The Fort Hood shooting revealed gaps in the military’s ability to recognize and address mental health issues among its personnel, prompting changes in policies regarding mental health support and screening. It also raised questions regarding the military's approach to dealing with the radicalization of individuals within its ranks. The event has been referenced in discussions of gun control, military preparedness, and the ongoing need to protect service members both at home and abroad.