Deadliest Attack on US Bases (Timeline)

The attack on Fort Hood in Texas is the deadliest mass shooting at a US military base in modern history.

In May, a US Army soldier was arrested after a shooting spree at Camp Liberty in the Iraqi capital Baghdad that killed five people and wounded three more.

That attack occurred at a clinic for soldiers suffering from war-related stress.

In 2005, a US Army sergeant was charged with premeditated murder in the deaths of two US officers who were killed in an explosion at their base near Tikrit.

And in March 2003, just days after US troops poured over the border into Iraq, an American soldier was detained after grenades thrown into three tents exploded at a US base in Kuwait, killing one soldier and wounding another 13.

Fatal attacks on military bases in the United States are rare.

In May, 2007 five militants were arrested by the FBI after a 16-month sting operation and eventually found guilty of plotting to kill "as many soldiers as possible" at the Fort Dix army base in New Jersey.

The Fort Hood shooting is among the deadliest in the United States, but other mass shootings in Texas have also made the list.

In 1966, a student went on rampage, killing 14 people from the observation deck of a tower on the campus of the University of Texas, Austin before he himself was shot dead by police.

In 1991, in what was then the nation's worst mass shooting on record, a gunman drove his pickup truck into a crowded cafeteria in Killeen, Texas, the city adjacent to Fort Hood, and began firing indiscriminately, killing 22 people before he himself was found dead.