Domestic Terrorism

Four Marines were shot and killed Thursday morning in a shooting at two military facilities in Chattanooga, Tennessee.

A U.S. Army Reserve officer was among those killed in the deadliest mass shooting in U.S. history.

Authorities are investigating trips the gunman took to the Middle East as they work to identify the motive behind the...

An Army officer was shot and killed in the Orlando nightclub while a Marine veteran of Afghanistan helped others to escape.

A Navy officer and one of the Marines murdered in last week's attack in Chattanooga fired their personal weapons at the...

Imran Yousuf, a former Marine who served in Afghanistan, was working as a bouncer at the Pulse nightclub when he heard...

The nation marked the 14th anniversary of the 9/11 attacks with messages of remembrance and resolve to prevail over terrorism...

A second U.S. military victim has been identified among the casualties of the deadly shooting at an Orlando nightclub.

The carnage in Paris on Friday came a day after the Justice Department warned of the potential for random ISIS-inspired...

A California school district and the Navy agreed on the move, out of concern for children with parents serving overseas.