After enlisting in the U.S. Marine Corps in 1966, Raymond Clausen was trained as a helicopter mechanic and had already completed a tour of duty before heading back to the jungles of Vietnam — against his mother's wishes.
Continuing his military service was something Clausen felt like he had to do.
On Jan. 31, 1970, Clausen would go above and beyond his call of duty as his helicopter deployed to the enemy-infested area near Da Nang in South Vietnam.
Clausen's crew's mission was to search for enemy activity in the area when, suddenly, they noticed some concealed bunkers near the tree line.
Directed by higher command, Clausen and his crew landed in a nearby grassy field. Once the troops dismounted from the cargo bay, the helicopters lifted out and patrolled in circles, approximately 1,500 feet above the LZ.
Shortly after, the enemy engaged the ground troops, causing them to disperse, fanning outward. As they separated, Marines stepped on the various landmines in the area.
Clausen knew he had to help the troops below, so he leaned out of the helicopter's window and directed his pilot as he landed the bird in a safe area to retrieve the wounded Marines.
Once they landed, Clausen leaped from the aircraft with a stretcher and ran through the minefield and helped carry the wounded Marines back to his helicopter.
Clausen knowingly made six separate trips across a minefield and is credited with saving 18 Marines that day. Once he knew all the men were accounted for, he signaled to the pilot to take off, taking the men to safety.
In total, Clausen has logged more than 3,000 hours of flight time as a crew chief and earned 98 air medals during his career.
President Nixon awarded Marine veteran Raymond Clausen the Medal of Honor on Jun. 15, 1971
Check of Medal of Honor Book's video below to hear one Marine's heroic tale of sacrifice and determination: