Operation Tidal Wave, the B-24 Liberators at Ploesti, and the Five Medals of Honor Won in One Mission

Operation Tidal Wave on August 1, 1943 produced five Medals of Honor from a single mission - a number unmatched in the entire history of American military aviation. Three of those five were awarded posthumously. 177 B-24 Liberators carrying nearly 1,600 men flew low-level attacks against the most heavily defended oil refinery complex in Europe at altitudes as low as 200 feet.

Why Ploesti Was the Most Important Target in Europe

By the summer of 1943, the Allied strategic bombing campaign was gaining traction, but at enormous cost. Planners kept returning to a single pressure point: oil.

In the Prahova River valley in the foothills of the Carpathian Mountains in southern Romania lay the largest oil refining complex in Europe - the city of Ploesti. Germany and Romania had been extracting and refining crude oil there since before World War I. By 1943, roughly one-third of all refined petroleum burned by Axis forces came from that valley: aviation gasoline, diesel, lubricating oil, heating fuel. Tanks, trucks, aircraft, and submarines all ran on Ploesti.

The 1942 Raid That Made Ploesti Harder to Hit

The Allies had attempted Ploesti once before. In June 1942, thirteen B-24 Liberators under Colonel Harry Halverson flew a high-altitude raid from Egypt. The bombs caused minimal damage. The Germans responded by nearly doubling the anti-aircraft batteries around the target and placing fighter groups on strip alert within scramble distance of the refineries.

When Allied planners returned to Ploesti the following year, they were planning against a target that had been actively hardening since the last visit.

The 200-Foot Attack Plan

The concept came from Colonel Jacob Smart, working at General Arnold’s headquarters in Washington. The logic: come in below Romanian radar coverage, fly low enough that heavy anti-aircraft guns cannot depress their barrels to track the formation, lay delayed-fuse bombs directly onto refinery structures, and exit before the smoke clears.

General Lewis Brereton, commanding the Ninth Air Force out of Libya, approved the plan. Five bomb groups were assigned:

44th Bomb Group - the Eight Balls
93rd Bomb Group - Ted’s Travelling Circus
98th Bomb Group - the Pyramiders
376th Bomb Group - the Liberandos
389th Bomb Group - the Sky Scorpions

For weeks in the desert heat outside Benghazi, the crews trained on scale models built from aerial reconnaissance photographs, flying low-level runs over mock targets laid out in the Libyan sand. Each crew memorized the specific buildings, towers, and cracking units assigned to them. Navigation to each aim point became reflex, not calculation.

What Went Wrong Before the Formation Reached Romania

The mission plan required everything to go exactly right. Nothing did.

Early in the Mediterranean crossing, the lead navigator’s B-24 - call sign Wongo Wongo - developed a control problem and dived into the sea. The lead navigator went with it. The formation held radio silence and pressed on.

Over the Albanian coast the formations climbed to clear the mountains, then descended toward Bulgaria and the initial point - the designated turn north toward Romania and Ploesti. The two lead groups arrived at the initial point and turned early. Crews in the lead aircraft had mistaken the town of Targoviste for the correct checkpoint. They were heading toward Bucharest, not Ploesti.

The three following groups, led by Colonel John Kane of the 98th, recognized the error and held the correct heading. The formation split - two groups flying the wrong course, three flying the right one, all maintaining radio silence.

When someone in the lead formations finally broke radio silence to call the error, the lead groups turned and accelerated toward Ploesti - now running late. The approach corridors intended to be clear when the later groups arrived would have traffic in them. The defenses would already be fully awake.

What 200 Feet Over Ploesti Actually Looked Like

The flak opened up miles from the target.

The Romanian countryside rolls at that altitude. Farm buildings, tree lines, and villages appear at close to 200 miles per hour. Anti-aircraft guns were not just ahead - they were on rooftops, on rail cars on sidings running parallel to the refinery complex, on hillsides with clear sightlines down into the valley floor. At 200 feet, a medium-caliber gun can track a bomber horizontally, and the gunners were well trained.

Balloon cables were strung across approach corridors. High-tension power lines stretched between steel towers that appeared in the windshield with very little warning. Industrial smokestacks rose above the refinery structures - some taller than the formation’s altitude. Smoke from bombs already dropped by early-arriving groups obscured aim points for groups still inbound.

The B-24 Liberator was not a nimble machine. 110-foot wingspan. 67 feet nose to tail. Four Pratt & Whitney Double Wasp engines at 2,000 horsepower each. Ten men to crew it. 65,000 pounds combat loaded. That was the aircraft threading between smokestacks and power lines while guns fired at cockpit level through the windshield.

The Five Medals of Honor

Colonel Leon Johnson - 44th Bomb Group Johnson’s formation arrived at its assigned target to find it already burning. Another group, off schedule, had struck it early. Smoke was thick. The flak was at its worst, with gunners having had time to fully range the approaches. Johnson drove the Forty-Fourth straight into it anyway - his specific refinery structures were still standing. The group dropped their bombs through the fire and smoke. Johnson survived. Johnson received the Medal of Honor.

Colonel John Kane - 98th Bomb Group Kane’s formation arrived under similar conditions - defenses fully aroused, fires and smoke visible from miles out, aircraft taking severe hits on approach. Kane pressed the attack. The Ninety-Eighth dropped its bombs. Kane got his battered aircraft out and eventually back to friendly territory. Kane received the Medal of Honor.

Lieutenant Colonel Addison Baker - 93rd Bomb Group (Posthumous) Baker flew the lead aircraft for the 93rd Bomb Group. On the approach, it took catastrophic hits. Setting it down short of the refinery might have saved part of his crew. Baker held the heading. The Ninety-Third followed him in. The bombs went on target. Baker steered the dying aircraft away from the populated area beyond the refinery before it went down. Baker received the Medal of Honor. Posthumously.

Major John Jerstad - 93rd Bomb Group (Posthumous) Jerstad had already completed enough combat missions to rotate home. He had earned the right to sit this one out. He volunteered to fly it anyway as the 93rd’s lead mission advisor. He was at the controls alongside Baker when the aircraft went down. Jerstad received the Medal of Honor. Posthumously.

Second Lieutenant Lloyd Hughes - 389th Bomb Group (Posthumous) Hughes was on the attack run when his aircraft took a hit that ruptured a fuel tank. Aviation gasoline was streaming down the fuselage. There was fire burning behind the right wing. Hughes held the heading. The bombs went on target. The aircraft cleared the refinery. Then the fire won. Hughes received the Medal of Honor. Posthumously.

The Cost

The mission cost 53 aircraft outright, not counting those that diverted to Turkey, Cyprus, Sicily, and Malta because they could not stretch their remaining fuel back to Benghazi. Approximately 310 men were killed during the mission itself; total casualties - killed, wounded, and prisoner - climbed considerably higher.

Of the 177 aircraft that crossed the Mediterranean that morning, 88 returned to Benghazi in operational condition.

Seven aircraft came down in Turkey. Turkey was neutral, and those crews were interned under international law - held in reasonable conditions but out of the war. Allied intelligence channels quietly moved some of them out over the following months. Other aircraft came down in the Adriatic, in Yugoslavia, and in the Carpathian foothills. Some crews walked out. Some did not.

Did Operation Tidal Wave Actually Shorten the War?

The damage to Ploesti, while significant in immediate assessment, was not permanent. German and Romanian engineers - working with forced labor - had much of the refinery capacity back online within weeks. Total refined oil production lost fell short of what mission planners had calculated.

Some historians, running the numbers on refined oil output against aircraft losses and crew casualties, conclude that Operation Tidal Wave was a tactical failure wrapped in extraordinary individual heroism. The cost was catastrophic. The damage was temporary.

Other historians push back, and the counterargument holds weight. The sustained strategic pressure on Ploesti over more than 20 additional bombing raids across the following 13 months absorbed enormous Luftwaffe defensive resources. Fighter groups scrambling to defend Romanian airspace were not flying over Normandy in June 1944. Gun barrels worn out over the Prahova Valley were not available to track B-17s over the ball-bearing plants at Schweinfurt. The cumulative burden that keeping Ploesti under persistent strategic threat placed on the Axis war economy may have exceeded what any single mission’s bomb damage assessment could capture.

By the summer of 1944, the German oil situation was in genuine crisis, and Ploesti was a meaningful part of why. Romanian forces switched sides in August 1944, Soviet troops occupied the valley, and the campaign ended.

Key Takeaways

Operation Tidal Wave on August 1, 1943 produced five Medals of Honor from a single mission - the most ever awarded for one action in American military aviation history; three were posthumous.
177 B-24 Liberators launched from Benghazi; only 88 returned in operational condition, with approximately 310 men killed and the total casualty count considerably higher.
Navigation errors split the formation before it reached Romania, alerting Ploesti’s defenses and creating overlapping bomb smoke that complicated the attacks for groups arriving on schedule.
Despite causing immediate damage, German and Romanian engineers restored much of Ploesti’s refinery capacity within weeks - but the sustained bombing campaign that followed contributed directly to the Axis oil crisis of 1944.
The five recipients - Johnson, Kane, Baker, Jerstad, and Hughes - each pressed their attacks under conditions that gave every tactical reason to break off; three did not survive to receive their medals.