In 1970, CBS News embedded with an Alpha Troop, 1st Squadron, 9th Cavalry Regiment, in Vietnam and was there when the platoon found themselves in an intense firefight. The infantrymen, the "Blues" of the air mobile unit, were sent in whenever the troops had a known or suspected enemy to fight.
See the original news piece of the intense firefight in the video below:
The men were headed home from investigating a series of North Vietnamese Army bunkers when Sgt. Kregg Jorgenson made eye contact with an enemy soldier hiding in the foliage and gripping an AK-47. Jorgenson, a Ranger veteran and three-time Purple Heart recipient, started firing at the same times as the enemy.
Jorgenson was pretty sure he had hit his man, but as the firefight erupted, the body on the trail disappeared. As the cameras kept rolling, the platoon leader called in air support and a medevac while the rest of the platoon poured lead into the trees.