Pruden joined the Army from Minneapolis, Minnesota in 1967,[1] and by the time of his death was serving as a staff sergeant in the 75th Ranger Infantry Regiment (Airborne), Americal Division.

Staff Sergeant Pruden's official Medal of Honor citation reads: For conspicuous gallantry and intrepidity in action at the risk of his life above and beyond the call of duty.

The 6-man team was inserted by helicopter into enemy-controlled territory to establish an ambush position and to obtain information concerning enemy movements.

Although grievously wounded, he directed his men into defensive positions and called for evacuation helicopters, which safely withdrew the members of the team.

Pruden's outstanding courage, selfless concern for the welfare of his men, and intrepidity in action at the cost of his life were in keeping with the highest traditions of the military service and reflect great credit upon himself, his unit, and the U.S. Army.