Adjective
killed in action
The designation for a member of an organization (primarily military) who has died while on duty.
It is a popular idea that a man is a hero just because he was killed in action. Rather, I think, a man is frequently a fool when he gets killed. George S. Patton
From the end of World War II until 1980, virtually no American soldiers were killed in action while serving in that region. Within a decade, a great shift occurred. Since 1990, virtually no American soldiers have been killed anywhere except the Greater Middle East. Andrew Bacevich
Killed in action 28 April 1917. Source: Internet
Killed in action flying a P-51 on a second tour. Source: Internet