Previously unseen photos show a harrowing assault during Vietnam WarS

Back in 1970, a Viet Cong sniper began shooting at a U.S. Army camp. Unsure of his location, the troops unleashed a barrage of fire that turned the hillside into a veritable hellstorm. Now, four decades later, Vietnam War veteran and photographer James Hensinger has released the incredible images he took that night.

All images: James Speed Hensinger/Rex Feat.

Hensinger was just 22-years old at the time and a member of the 173rd Airborne Brigade. In April 1970, a sniper began spraying automatic rifle fire on his army based in Phu Tai, near the coastal city of Da Nang.

Previously unseen photos show a harrowing assault during Vietnam WarS

The assault on the sniper's position begins with rounds fired from the 40mm auto-cannons on an M42 anti-aircraft tank.

Previously unseen photos show a harrowing assault during Vietnam WarS

Flares were then launched into the hills, while a pair of M-60 machine guns in guard towers began to fire. Their tracer bullets can be seen in red.

Previously unseen photos show a harrowing assault during Vietnam WarS

Hensinger is quoted in the Daily Mail: 'The guy would stand up from behind a rock and blow off a clip from his AK47 on full-auto. The sniper was shooting at such a high angle that most of his rounds came through the sheet metal roofs of our hooches. We decided to use a 'heavy' response the next time the sniper hit us."

Previously unseen photos show a harrowing assault during Vietnam WarS

Hensinger set his Nikon camera to take long exposures during the assault.

Previously unseen photos show a harrowing assault during Vietnam WarS

The M42 tank's .50 calliber machines guns let loose.

Previously unseen photos show a harrowing assault during Vietnam WarS

Thousands of rounds were rained down on to the hillside.

Previously unseen photos show a harrowing assault during Vietnam WarS

"We sent out patrols during the day, and found a blood trail one morning. Otherwise, we never found him."

Previously unseen photos show a harrowing assault during Vietnam WarS

His self-portrait.

[Via Daily Mail]