In the autumn of 1941, the German high command looked at the Soviet Union and saw a nation that simply had not yet been told it was dead. And the evidence seemed to support them. Only three years earlier, Stalin had turned on his own army in the purges of 1937 and 1938, executing, imprisoning, or dismissing more than 30,000 officers. Three of the five marshals of the Soviet Union were shot.

Then came the Winter War against tiny Finland, where the Red Army lost more than 126,000 men killed and missing against a nation a fraction of its size. When the German invasion opened in the summer of 1941, entire Soviet armies were swallowed in vast encirclements, with hundreds of thousands of men taken prisoner in a matter of weeks. Hitler famously said that you only had to kick in the door and the whole rotten structure would come crashing down. To almost every professional soldier in Europe, the Red Army was a giant with a shattered spine.

But there was one man in that army whom the German generals would come to study more carefully than any other Soviet commander. His name was Georgy Konstantinovich Zhukov. Born to a poor peasant family, apprenticed as a boy to a furrier in Moscow, and pushed into the cavalry as a conscript before the First World War, he had no aristocratic polish and no staff college charm. He was blunt to the point of cruelty, feared by his own officers almost as much as by the enemy.

He was demoted and pushed aside more than once by a leader who trusted no one for long. Yet by the end of the war, the Soviet press had a single phrase for him that soldiers repeated like a charm: Where Zhukov is, there is victory. They called him the Marshal of Victory. To find his first great tactical move, one must leave Europe entirely.

In the summer of 1939, a border dispute in the empty grasslands of eastern Mongolia flared into an undeclared war between the Soviet Union and the Empire of Japan. The Japanese Kwantung Army was confident, aggressive, and used to winning. It had pushed troops across a disputed river near a stream called Khalkhin Gol, and a powerful faction in Tokyo wanted to strike north deep into Soviet Siberia. Moscow sent a little-known corps commander to take charge of a failing situation.

That officer was Zhukov. He arrived and did something the Japanese did not expect. He waited. The ground itself was the first problem.

This was treeless steppe, flat and open for miles, with no cover and no local supplies. The nearest Soviet railhead sat roughly 600 kilometers away across bare grassland. So before he fought, Zhukov built. He assembled a supply line run by thousands of trucks, hauling fuel, water, ammunition, and food out into the middle of nowhere, day and night, on round trips that could take five days.

On the back of that effort, he gathered nearly 500 tanks, around 550 aircraft, and a heavy mass of artillery. And he hid the true size of it with a patience that would become his trademark. The heart of the method that defined his whole war was deception. Zhukov ran his tanks and trucks up and down the front at night with their mufflers removed, filling the darkness with engine noise until the Japanese stopped reacting to it.

He set up loudspeakers that broadcast the sounds of construction and hammering so listening posts would believe the Soviets were digging in to defend, not massing to attack. He issued false instructions describing defensive preparations. The real plan went to only a handful of senior officers. His assault divisions moved into position after dark and stayed hidden through the day under strict discipline.

On the morning of August 20, 1939, he struck. It was a Sunday, a day often said to have been chosen because many Japanese officers were away from the front. The surprise was complete. The plan was a double envelopment.

Zhukov pinned the Japanese in the center with infantry, so the enemy commander believed the main battle was there and fed his reserves into it. Meanwhile, his armored and mechanized brigades swept wide around both flanks, drove deep behind the enemy, and met in the rear. Within days, the Japanese division was sealed inside a ring of steel and pounded from every side. By the end of the month, the pocket had been crushed.

What made the victory so striking was how modern it was. Hundreds of fighters dueled in some of the largest air battles the world had yet seen, while on the ground Zhukov handled tanks, aircraft, infantry, and artillery as a single coordinated fist. This was not the clumsy Red Army of the Finnish snows. The cost was heavy on both sides.

Japanese losses came to roughly 20,000 men. Soviet losses, according to declassified archives, were comparable and by some counts higher, somewhere between 23,000 and 25,000. Zhukov won, but he was never a cheap winner. The consequences reached far beyond that lonely steppe.

The beating convinced Japan that striking north into Siberia was a losing game. It helped turn Japanese ambitions south toward the Pacific and Southeast Asia, and it led to a neutrality pact that later allowed Stalin to move seasoned divisions away from the Far East at the very moment Moscow stood in mortal danger. The shape of the thing was already visible: prepare in secret until the machine is complete, feed the enemy a false picture of what is coming, gather crushing force at the point of your choosing, then close both arms of the trap behind him. Those habits would define every great victory Zhukov ever won.

By the autumn of 1942, the German Sixth Army had fought its way into Stalingrad on the Volga and was grinding through it street by street. But while the world’s eyes were fixed on that rubble, Zhukov and the chief of the general staff, Aleksandr Vasilevsky, were studying the map around it. They saw not the strong German center but the weak shoulders on either side. The long flanks guarding the Sixth Army were not held by Germans at all.

To the north and south, they were held mainly by the Romanian Third and Fourth Armies, thinly stretched across open ground, short of anti-tank guns, and low on morale. Zhukov and Vasilevsky proposed to Stalin that the Red Army stop trying to win the city by feeding men into it. Instead, they would strike far out on those brittle flanks, punch through them north and south of the city, and drive the two spearheads together far behind the German rear. The whole of the Sixth Army would be caught in a single ring.

Stalin approved the plan on November 13, 1942. It was given the code name Operation Uranus. The scale of the secret buildup was staggering. In the weeks before the attack, the Soviets moved more than one million men, nearly 900 tanks, well over 13,000 guns and mortars, and around 1,500 aircraft into position.

And they did it while convincing German intelligence that no such force existed. This was the deception of Khalkhin Gol grown to monstrous size. Troops and vehicles crossed the Volga only at night. Radios stayed silent.

Soviet engineers even built bridges just below the surface of the water so that from the air the rivers looked empty while whole armies moved across them. Zhukov was a co-author of the concept and the deputy supreme commander, but the officer coordinating the encirclement on the ground was Vasilevsky. Zhukov himself was away to the north at the critical moment, running a second massive offensive that was a bloody, costly failure. Even in his greatest season, he did not win everything.

The trap itself worked with cold precision. On November 19, 1942, after a thunderous artillery barrage, the northern pincer smashed through the Romanian Third Army. The next day, the southern pincer tore open the line below the city. The two Soviet spearheads raced toward each other across the frozen steppe and met near the town of Kalach on November 23.

In just four days, the ring had closed. Around a quarter of a million Axis soldiers were sealed inside it, cut off from supply in the deep Russian winter. The head of the German air force promised his aircraft could keep the trapped army supplied from the air, but they never came close. The Sixth Army needed hundreds of tons of food, fuel, and ammunition every day, and the airlift delivered only a fraction while Soviet fighters and flak shot the transport planes out of the sky.

In December, a German relief force under Field Marshal Erich von Manstein drove hard from the southwest and fought to within about 50 kilometers of the trapped men before being thrown back. Hitler forbade any breakout. The men inside simply held on and slowly starved and froze. Field Marshal Friedrich Paulus surrendered on January 31, 1943, and the last pocket to the north gave up two days later.

An entire German field army had ceased to exist. By the middle of 1944, the Western Allies had landed in Normandy, but the decisive blow of that summer fell in the east, aimed at Army Group Center, the strongest German force on the entire eastern front, dug in across Belarus. As deputy supreme commander, Zhukov was sent to coordinate the two southern fronts of the coming offensive while Vasilevsky coordinated the two in the north. The operation was named after a hero of an earlier Russian war: Bagration.

The deception that made it possible was the largest of the whole war. German intelligence was convinced, deliberately and carefully, that the great Soviet summer attack would come far to the south in Ukraine. So that is where the Germans kept their precious tank reserves. To sell the lie, the Soviets built entire dummy armies in the south, fields of wooden and canvas tanks, false radio traffic, and staged movements of trucks, all meant to be seen and photographed.

In the real assembly areas facing Army Group Center, they did the opposite: total radio silence, movement only in darkness, guns and armor hidden under netting by day. Roughly 143,000 partisans waited for the signal to tear apart the railways the Germans would need to rush in reserves. The forces gathered for the blow were immense: more than one and a half million men in the first wave, around 5,800 tanks and assault guns, tens of thousands of guns and mortars, and thousands of aircraft, all concentrated against an army group that had been quietly stripped of its armor to feed the south. The offensive opened on June 22, 1944, three years to the day after the German invasion of the Soviet Union had begun.

That night, the partisans blew the rail network apart in thousands of places at once. Then the Soviet armies drove forward, not in one straight shove, but in a series of deep envelopments, exactly the pattern Zhukov had first drawn on the steppe five years earlier. German divisions were surrounded in pocket after pocket around the cities they had been ordered to hold to the last man. The first great traps closed within days at Vitebsk and Bobruisk.

The Belarusian capital Minsk was liberated on July 3, 1944, and behind its fall, roughly 100,000 German troops were trapped in the largest pocket of them all. German casualties ran close to 400,000 men killed, wounded, and captured. Army Group Center was effectively destroyed, the greatest single defeat the German army suffered in the whole war, worse in raw losses than Stalingrad. On July 17, 1944, 57,000 German prisoners led by 19 captured generals were marched through the streets of Moscow.

In roughly two months, the front had rolled westward by hundreds of kilometers, and the road to Warsaw and Berlin lay open. Field Marshal Gerd von Rundstedt, one of the most senior German commanders of the war, was asked afterward which Soviet general had impressed him most. His answer was short: Zhukov was very good. The most revealing testimony came from General Dwight Eisenhower, who after the war awarded Zhukov the American Legion of Merit.

Zhukov explained quite calmly how the Red Army dealt with a minefield: the infantry advanced straight across it as if the mines were not there. The losses from those mines, he reasoned, were no worse than the losses the same men would suffer from machine guns and artillery if the enemy had defended that ground with soldiers instead. Eisenhower wrote afterward that he could only imagine what would have happened to any American or British commander who fought that way. They measured the cost of war in human lives, while the Russians measured it in the overall drain on the nation.

The empire that had promised to kick in the door and watch the whole rotten structure fall had instead met the one soldier who took its finest armies apart piece by piece. On June 24, 1945, it was Georgy Zhukov who rode out onto Red Square to take the salute at the great victory parade. The peasant’s son, the demoted and doubted cavalryman, stood at the very center of the triumph. Yet within a year, Stalin, wary of a general grown too famous and too popular, stripped him of his central command and sent him off to a quiet provincial post.

The Marshal of Victory was pushed aside once more by the very system he had saved. In the end, even his enemies had learned to believe it.