Three-Volley Salute
Calling the shots fired at a military funeral a 21-gun salute is incorrect. Even if there are seven soldiers firing three rounds each, this is not considered a
21-gun salute. The shots fired during a military funeral are called the
firing of three volleys in honor of the fallen.
The firing of three volleys dates back to the custom of ceasing hostilities to remove the dead from the battlefield. Once finished, both sides would fire three volleys to signal that they were ready to resume the battle.
During the firing of three volleys, the rifles are fired three times simultaneously by the honor guard. Any service member who died on active duty, as well as honorably discharged veterans and military retirees, can receive a military funeral, which includes the three volleys, the playing of "Taps" along with a United States flag presented to the next of kin. Three spent cases are usually inserted into the folded flag, one representing each volley fired.