For two thousand years, no army had crossed the Rhine against prepared Germans on the far bank. Not Julius Caesar, not Napoleon, not the American Expeditionary Force in 1918. On the night of March 22, 1945, the men of the U. S.

5th Infantry Division crossed in wooden assault boats under cover of darkness, losing only about twenty men. Their commander had forbidden artillery support. The army commander wanted the river seized before dawn. On the far bank, seven German soldiers were about to raise their hands in surrender to what they took for an American patrol—but it was not a patrol at all.

It was the beginning of the end of the Third Reich. They reached the village of Nierstein, a mile from Oppenheim, in breathless silence. Men of Company K, 3rd Battalion, 11th Infantry Regiment, hauled the heavy wooden boats to the water’s edge. Each boat weighed 450 pounds and required twelve men to carry; the canvas sides scraped against their sweat-soaked uniforms, and the timber thudded against their thighs and shoulders as they stumbled through the darkness.

There was no moon, no searchlights sweeping the sky, no artillery barrage to pave the way. Their commander had forbidden it. One hundred forty miles to the north, at the same hour, another force waited on another stretch of the same river. More than a million Allied soldiers had massed there for the largest organized river assault since the war began.

Over three thousand artillery pieces were in place. A quarter-million tons of supplies lay stacked behind the lines. Field Marshal Bernard Montgomery, precise and cautious, had scheduled his crossing for the following night. He did not know that George S.

Patton had already begun. Patton, fifty-nine years old, thin, gray at the temples, had a patience that had nearly cost him his career more than once. He commanded the U. S.

Third Army. He despised Montgomery. He wanted to reach the Rhine first, and he wanted the world to know that he had taken it. On the morning of March 22, he ordered Major General Manton Eddy of XII Corps to cross the Rhine that very night using whatever boats could be assembled in time.

Eddy passed the order to S. LeRoy Irwin, commander of the 5th Infantry Division, the Red Diamond veterans of Normandy and the Ardennes. Irwin protested. He told Eddy that a properly planned crossing was impossible in the time available, but that he could secure some kind of bridgehead.

Some kind of bridgehead was all Patton wanted. At ten o’clock that night, the men of the 11th Infantry pushed their boats into the current. The river swept them downstream immediately. They paddled hard, cursing in silence, listening for any rifle shot from the far bank that would tell them the enemy had heard.

Nothing came. The German garrison on the eastern bank was only a screen of exhausted men and boys of the Volkssturm, the last scrapings of a collapsing Reich. They had not been told an American army might cross their river. They had not been told anything at all.

When the first boat touched the eastern bank, seven German soldiers stood with their hands raised. They surrendered without firing a shot, believing they had encountered only an American patrol. By dawn on March 23, four battalions of the 5th Infantry Division stood on German soil east of the Rhine. Total casualties in the crossing were about twenty men killed and wounded.

By any measure, it was one of the least costly major river assaults in the history of modern warfare. Patton picked up his field telephone that morning and called General Omar Bradley, commander of the 12th Army Group. “Brad, don’t tell anyone, but I’m across,” he said. The Germans had told themselves for two thousand years that the Rhine could not be crossed against them.

Caesar crossed only by building a bridge. Napoleon crossed only after the collapse of the Kingdom of Prussia. Even in the final weeks of the Third Reich, as the Wehrmacht bled on every front, German propaganda still called the Rhine the sacred moat that would give Berlin time to negotiate, time to survive. That belief died at Nierstein, while the boys of the 5th Infantry paddled through the dark.

But the real weapon that broke the Rhine, the machine that had already begun to reshape what the river meant in modern war, was not the wooden boats of March 22. It was something older, stranger, and most strange of all, it looked ordinary. It had a name no soldier could pronounce and a shape no engineer could love. It looked like a truck that had grown a bathtub.

It could not fight, could barely defend itself, and could not decide if it belonged to land or water. It was called the DUKW. The men who drove it called it the Duck. Its story began three years earlier, in a country not yet fully at war with itself about how to fight the war it had joined.

In the spring of 1942, in a Washington office, a scientist named Vannevar Bush ran an organization called the Office of Scientific Research and Development. He had already helped launch the Manhattan Project. That April, on his desk lay an army request for a machine that could move cargo directly from ship to shore without stopping to unload. Bush passed the problem to his chief technical aide, an engineer named Palmer C.

Putnam. Putnam first went to Ford. Ford refused, saying the project could not be built in the time available. He then went to Yellow Truck & Coach Manufacturing, a General Motors subsidiary in Pontiac, Michigan.

General Motors agreed. Putnam hired three men to lead the design work. Together they took the hull of a standard GMC 2. 5-ton truck, the workhorse of the American army, and wrapped it in a boat hull.

The prototype rolled out on June 2, 1942, thirty-eight days after the contract was signed. The army was not impressed. Officers watched the strange machine churn across a test pond and dismissed it as a curiosity. Then, on the night of December 1, 1942, off the coast of Provincetown, Massachusetts, a gale forced a Coast Guard patrol boat onto a sandbar.

Conventional rescue boats could not reach it through the breaking surf. But a DUKW could. By morning, every senior officer in Washington had heard the story. Production began in earnest.

By March 1945, the assembly lines in Pontiac had produced 21,147 DUKWs. Each cost about $10,750. Each could carry about twenty-four soldiers or 2. 5 tons of cargo.

It could climb from water to land on any bank a truck could climb, and drive fifty miles an hour once its wheels touched pavement. The Germans knew of it. Popular history says the German defenders were surprised by a weapon they had never seen. That is not true.

German intelligence had documented DUKWs in Sicily in July 1943. They had seen them at Salerno, Anzio, and Normandy. The files existed. The failure was not in the machine, but in the arithmetic.

A German intelligence assessment prepared in February 1945 estimated the Western Allies possessed perhaps one hundred to one hundred fifty amphibious vehicles suitable for river operations in the entire European theater. The actual number available for the Rhine crossing was more than two thousand DUKWs and six hundred British Buffalo amphibious tractors. The German mind, shaped by an industry that could build only twenty-one amphibians of its own during the entire war, could not grasp an enemy capable of building twenty-one thousand. There was also a failure of command.

On March 10, 1945, twelve days before Patton’s boats touched the water at Nierstein, Hitler relieved Field Marshal Gerd von Rundstedt of command of the German high command in the west. Von Rundstedt was sixty-nine, had led German armies since 1939, and knew the Rhine, the Ruhr, and the terrain of every valley feeding the great river as no other living German officer did. In his place, Hitler appointed Field Marshal Albert Kesselring. Kesselring was competent, respected, and cheerful enough to earn the nickname “Smiling Albert.

” But he was a specialist in mountain warfare in Italy. He had spent the previous two years fighting up and down the Apennines. He knew almost nothing about the ground he was asked to defend, and he was given less than two weeks to learn it. While Kesselring studied maps and Patton whispered orders to Bradley over a captured field telephone, a third movement was already underway.

Fifteen miles upriver, American artillery began laying a thick smoke screen. Shells rose into the air. White phosphorus clouds blossomed. Radio traffic increased.

Every indicator of a river assault was available on the airwaves for German listening posts. It was a deception. The real crossing was happening ten miles to the south, in the darkness at Nierstein, where the eastern bank was lightly guarded and the defenders had no idea what was coming. Two rivers were about to be crossed.

One was the Rhine. The other was the boundary between two different ways of waging war. By the morning of March 23, news of what Patton had done was traveling up the chain of command faster than the men who had done it. In his headquarters in Luxembourg, Bradley put down the telephone and turned to his staff.

The Third Army was across the Rhine. There were no cheers. Men who had lived through three years of European war did not cheer at such news. They understood what it meant.

The last natural barrier between the Western Allies and the industrial heart of Nazi Germany had been breached by a single infantry division in wooden boats under cover of darkness, at a cost of about twenty men. It also meant Montgomery would be very angry. One hundred forty miles to the north, near the town of Xanten, the largest artillery concentration in the history of the Western Front was uncovered. More than three thousand Allied guns along a twenty-two-mile front, with enough shells stacked behind them to fire without stopping for most of a week.

This was Operation Plunder, Montgomery’s answer. Where Patton had risked, Montgomery had calculated. Where Patton had crossed in silence, Montgomery would cross with a roar that could be heard in Berlin. At five in the evening on March 23, the guns opened fire.

The men on the western bank could no longer hear their own voices. The ground shook. An artillery observer watching from a farm east of the river stopped counting muzzle flashes at five hundred. He would later write that they looked like a continuous line of fire stretching north and south farther than the human eye could measure.

At nine that night, the guns fell silent and the Buffaloes came out of the woods. About six hundred of them lined the front. Each carried thirty men. The 7th Battalion of the Black Watch, of the 51st Highland Division, was the first to move.

A sergeant remembered the crossing took less than three minutes. He remembered thinking the tracer rounds looked like strings of red beads pulling them across the river. He remembered no one spoke. When the Buffalo’s ramp dropped, the Highlanders stepped onto the eastern bank of the Rhine.

Behind them, the DUKWs were already entering the water. This is the part of the story popular memory has forgotten. The Buffaloes carried the first wave of infantry. The DUKWs carried everything that came after: ammunition, rations, mortar rounds, anti-tank guns, radios, medical supplies, hot coffee in insulated containers.

When the wounded began coming back, the DUKWs carried them directly from aid stations on the eastern bank to field hospitals on the western side without transferring them from vehicle to vehicle. That was the revolution, not the crossing itself. The Rhine had stopped being a wall and become a road, a road running in both directions, a road that never closed. At ten in the morning on March 24, the sky filled.

Sixteen thousand paratroopers and glider troops, 1,696 transport planes, 1,350 gliders, a single air fleet stretching more than two hundred miles from airfields in England and France to drop zones east of the Rhine. This was Operation Varsity, the largest single-day airborne operation in the history of warfare. They jumped from only seven hundred feet to shorten their exposure to German anti-aircraft fire. The theory was sound, but the execution was awful.

By the end of that day, the 17th Airborne Division lost 430 killed in action. The 6th Airborne lost 590. Total casualties for the two divisions reached about 2,378. Of the 1,350 gliders that landed in Germany, only 172 were later considered repairable.

Every objective was taken. Operationally, Varsity was a success. But it remains the worst day in the history of Allied airborne warfare. On the western bank of the Rhine, at a destroyed railway bridge outside Wesel, an old man in a round hat stood watching the smoke rise from the far bank.

He was seventy years old. His name was Winston Churchill. Eisenhower had ordered him in writing to stay on the western bank. Churchill read the order and put it in his pocket.

On the afternoon of March 25, with Montgomery beside him, Churchill walked to the water’s edge and boarded an American landing craft. The young sailors did not recognize him at first. When they did, their faces went pale. But the old man was already aboard, cigar between his teeth, and there was no time to argue.

The landing craft crossed the Rhine. For about thirty minutes, Winston Churchill stood on German soil east of the great river. German shells fell close enough that he could hear shrapnel ripping through the willow trees behind him. He picked up a handful of black soil and held it toward the light.

“German soil,” he said at last. Then he returned to the boat. While Churchill stood on the eastern bank, the calculations were already being made. In the industrial town of Wesel, at a place called Boppard, and at points along two hundred miles of the German river, the Ducks kept moving.

They moved by day. They moved by night. Each vehicle carried its two and a half tons across the Rhine, unloaded, and came back for more. The Germans looked for bridges to bomb.

There were no bridges to bomb. There were only trucks, swimming trucks, coming off assembly lines in Michigan in numbers no German general could imagine. East of the river, inside a farmhouse turned into a temporary command post, Field Marshal Walter Model looked at a map that no longer meant what it had meant a week before. Model was fifty-four, known in the Wehrmacht as the Fireman, the general Hitler sent when a front was collapsing.

He looked at the map for a long time. Then he went outside, lit a cigarette in the cold March air, and said nothing to the officers standing behind him waiting for orders. There was no order to give. The road across the Rhine was open in both directions now, and it would never close.

By the last week of March 1945, the Rhine had stopped being a river. It had become a two-lane highway, running east and west twenty-four hours a day. But not every crossing was easy. On the morning of March 26, forty miles from Wesel, the 89th Infantry Division reached the water at a place called Sankt Goar, at the narrowest bend of the Rhine, the country of the Lorelei, where cliffs rise more than four hundred feet straight from the water.

On that morning, the top of the Lorelei cliff was covered with German mortars, machine guns, and anti-aircraft guns firing directly down at the river. The 89th Division was mostly new draftees, in Europe since January. Most had never crossed a river under enemy fire. The DUKWs went in first.

The first shells came from the direction of the Lorelei after about forty seconds. One DUKW took a direct hit in the water, not sinking so much as disappearing entirely. Sankt Goar was taken. The Lorelei cliff was cleared by nightfall.

But the men who were there would remember for the rest of their lives that the great American amphibious truck was not invincible. It was just a boat with wheels and a canvas roof, as fragile as anything else in war. It won because there were thousands of them, because they kept coming, and because the men inside kept driving even when the vehicle in front of them had just vanished into the river. By the end of March, the Rhine had been crossed at six major points along a front of more than two hundred miles: Oppenheim, Wesel, Rees, Boppard, Sankt Goar, and Worms.

The last crossing came at Worms on March 26, and on the last day of March, the French First Army crossed at Speyer. The Rhine, which had protected Germany for two thousand years, was breached from Switzerland to the North Sea in nine days. Behind the crossings, the great encirclement began. The U.

S. First Army and the U. S. Ninth Army swung toward each other like the arms of a gate closing slowly.

Between them lay the Ruhr, the industrial furnace of the Third Reich, the factories that had made the guns and tanks and shells that had killed so many of the men now closing the gate around them. Inside that gate stood Army Group B, commanded by Field Marshal Walter Model. On April 1, the two American armies met at the town of Lippstadt. The Ruhr Pocket was closed.

Inside it, 317,000 German soldiers found themselves isolated from the collapsing Reich. Model did not surrender. But he did not fight to the last man either. On April 15, at a farm east of Duisburg, he signed an order dissolving Army Group B.

He released his soldiers from their obligations. On April 21, Model walked into a forest in Duisburg with his pistol in his hand. Three days earlier, the last organized resistance in the Ruhr Pocket had collapsed, and 317,000 German prisoners marched west toward captivity. The Ducks did not stop for them.

There was no time to stop. The war in Europe would end in less than three weeks. On April 25, American soldiers and Soviet soldiers met at the town of Torgau on the Elbe. On April 30, in a bunker beneath the ruins of Berlin, Adolf Hitler put a pistol to his head.

On May 7, in a schoolhouse in Reims, General Alfred Jodl signed the unconditional surrender of all German armed forces. It was forty-six days after the boys of the 11th Infantry lowered their assault boats into the water at Nierstein. Forty-six days after Patton called Bradley and told him not to tell anyone. Forty-six days after seven Germans on a dark shore on the wrong side of a river they believed no army could cross raised their hands to what turned out to be, not a patrol, but an entire army.

The DUKW did not win the war alone. No single weapon does. But the Duck made the impossible possible. It turned the river into a road.

It allowed a wounded man to reach a surgeon in an hour instead of a day. It allowed an army to be supplied across a barrier that would have starved it for weeks in any previous war. Bradley would later write that the traditional method of crossing the Rhine would have cost fifty thousand American lives. The Ducks saved most of them, not by being clever, not by being brave, not by being a wonder weapon.

They saved them by being ordinary, ubiquitous, and built in numbers no German field marshal in a farmhouse east of the river could believe were real. That is the American way of war. Not always beautiful. Not always heroic as paintings and old songs try to make it.

But effective. Twenty-one thousand one hundred forty-seven vehicles came off the assembly lines in Pontiac between 1942 and 1945. Most of them survived the war. A few, more than eighty years later, still float.

They take children on rides in Boston Harbor, Wisconsin Dells, and the River Thames in London. Their engines are older than most of the men who drive them. And occasionally, on a quiet Sunday afternoon in an American harbor, an old man in a baseball cap walks down the pier, stops beside one of them, puts his hand on its steel side, and stands for a long time without saying a word. He will remember the cold water of the Rhine.

He will remember the sound of a shell hitting the river close enough to wet his boot. He will remember the boy who sat beside him in the vehicle, whose name he still knows, who never came home. Then, after a while, he will lift his hand and walk back along the pier, returning to a country his vehicle helped save. That was the last mission of the Ducks.

They brought the boys home, and in the end they did it the way they did everything else. Quietly, steadily, in great numbers, never claiming to be more than they were, which is, in the simplest possible terms, exactly what the moment required.