The attack took place on the 1st SFAB's first deployment to Afghanistan.
An Afghan commando who fatally shot a Utah mayor had planned the killing for weeks, according to an Army report.
Saboor's attack on two U.S. advisers led to significant restrictions on how the U.S. worked with Afghan partners.
The Navy and Marine Corps must complete servicewide reviews of the security measures that protect troops and their families.
Maj. Jason Brezler, a Marine reservist, has been fighting a recommendation for separation since 2013.
The incident is under investigation, according to the Department of Defense.
The Army recently awarded six 4th Infantry Division soldiers with combat awards for responding to an Oct. 18 insider attack...
Continuing the advise-and-assist mission in Afghanistan was the best way to honor their fallen comrades, he said.
The bullet tore a large hole in the ballistic material, but the Enhanced Combat Helmet (ECH) stopped the round.
The training -- continuously revised in response to events overseas -- emphasizes security, vigilance and marksmanship.