It’s impossible to describe John Ripley’s most famous action in a single headline. This Marine dangled from the Dong Ha Bridge for some three hours as North Vietnamese soldiers took potshots at him. He took his time attaching 500 pounds of explosives to the bridge, singlehandedly halting an advance of 20,000 Communists during the Easter Offensive.
Then-Captain John Ripley was an American advisor in the northern regions of South Vietnam in 1972. He was at Camp Carroll, a firebase between Khe Sanh and Dong Ha, advising South Vietnamese troops. It was his second tour in Vietnam and things were mostly quiet…until they weren’t.
The NVA had been testing the U.S. defenses at firebases in his area but they would quickly disengage. One day in March 1972, they didn’t stop. Enemy artillery started raining shells on the firebases in the area. The NVA was throwing everything they had at South Vietnam, 14 divisions and 26 independent regiments. The Easter Offensive had just begun.
As Camp Carroll was overrun and its ARVN garrison surrendered, Ripley and another American escaped on a CH-47 Chinook. But the helicopter took on too many fleeing ARVN troops and was forced to crash land on Highway 1, near Dong Ha.
At Dong Ha, close to the DMZ that separated North and South Vietnam, he found a number of South Vietnamese Marines who had no intention of surrendering. He also found some 200 North Vietnamese tanks and self-propelled artillery backed up for six miles – and ready to cross the Cam Lo River.
“We didn’t have the wherewithal to stop that many tanks. We had little hand-held weapons. And we certainly didn’t have anything on the scale that was needed to deal with the threat. Originally 20 tanks had been reported.” Ripley chuckled softly at the memory years later.
With the monsoon season limiting American air support and the North Vietnamese controlling one half of the bridge, Ripley decided he had to blow up the bridge. By himself, if necessary.
Another American, Maj. James Smock drove him to the bridge in a tank and Ripley headed below where he found five ARVN engineers trying to rig the bridge to blow. They had 500 pounds of TNT. The problem was the way the explosives were laid out; the bridge wouldn’t be completely destroyed and the NVA would still be able to cross. They’d have to be rearranged.
By hand. With tanks and guns shooting at those hands.
Meanwhile, 90-pound South Vietnamese Marine-Sergeant Huynh Van Luom dashed onto the bridge in what Ripley called “the bravest single act of heroism I’ve ever heard of, witnessed or experienced.”
Huynh fired two M72 light antitank assault weapon rounds at the lead NVA tank. The first shot missed, but the second hit the tank turret, stopping it cold. The entire column was stopped. It couldn’t move and couldn’t turn around.
The ARVN engineers below the bridge took off as Ripley climbed over the razor wire barrier designed to keep people from doing what he was about to do. He climbed hand over hand as Smock pushed the explosives out to him. Ripley grabbed the box and moved it to a better location.
“I would hand-walk out, then swing up to get my heels into the “I” beam,” Ripley said, recalling that he was still wearing all his web gear and slung rifle. “Then I’d swing down on one T beam and then leap over and grab another T beam.”
For nearly three hours, Ripley dangled under the Dong Ha Bridge, rigging it to blow, and frustrating the enemy trying to kill him. To make matters worse, Ripley had no blasting caps, so he had to use timed fuses — fuses with an unknown time, set with his mouth.
Smock moved to rig the railway bridge to blow at the same time and moved back to friendly lines. The 500-foot bridges blew up just minutes later. The armored column became sitting ducks for the Navy’s ships offshore and South Vietnamese A-1 Skyraiders.
His effort on the bridge that day may have been the decisive factor that kept the North from taking Saigon until three years later.
Colonel John Ripley died in 2008 at the age of 69, but not before making a trip back to Dong Ha with some of his buddies from L/3/3 Marines in 1997.
(Cover Photo: Painting by Col Charles Waterhouse, USMCR (Ret.) captures the spirit of Ripley at the bridge at Dong Ha.)