He didn’t know what was in the ration tin.

He just knew he was about to die if he didn’t take it.

The Soviet soldiers were a quarter mile away and closing fast, skiing down the mountainside in a long, disciplined line, machine guns up, bullets already snapping through the trees. His teammates were pulling ahead of him. His legs had stopped cooperating. The tracks he had been cutting through the deep snow — the ones that made it easier for everyone behind him — had taken everything he had, and now his body was simply refusing to go any faster.

He was 26 years old. The oldest of six siblings. He had promised every single one of them he would come home.

He dug into his pocket and took the whole tin at once.

Not the recommended dose.

The whole thing.

Then he kept skiing.

His legs failed him anyway.

He tumbled off the side of the mountain, slammed into a tree, and passed out in the snow.

When Aimo Koivunen woke up, he was alone, it was light outside, and he felt like a completely different person.

He felt like he could do anything.

He had no idea why.

—

To understand what happened to Aimo in those two weeks in the Arctic Circle, you have to understand what he had taken.

The Finnish military — along with the German military they were allied with during World War II — had been issuing soldiers a drug called Pervitin since around 1940.

It was packaged in small tins as military rations. It was officially described as a stimulant to help soldiers manage fatigue during extended operations. Commanders handed it out routinely. Soldiers carried it the way they carried ammunition.

What Pervitin actually was, in chemical terms, is crystal methamphetamine.

Pure. Military grade. Packaged in uniform little tins and handed to young men who were told it would help them keep going.

Aimo Koivunen took an entire tin’s worth in one desperate swallow on a mountainside in Lapland on March 18th, 1944.

And then his body failed him before the drug had even kicked in.

He woke up some unknown amount of time later with the drug fully in his system, the Soviets apparently gone, his teammates nowhere in sight, and a level of alertness he would later describe as unlike anything he had ever experienced in his life.

What followed was one of the most extraordinary — and most chemically deranged — survival stories in the history of World War II.

Lapland, March 1944

The mission had been straightforward, as missions in Lapland during the Continuation War went.

Aimo and his squadron were Finnish soldiers, deep in a part of northern Finland that the Soviet Union had seized four years earlier. Finland wanted it back. Germany was helping. The alliance was transactional and uncomfortable — the Finns were not Nazis, had no interest in Nazi ideology, and would eventually turn on their German partners within a year — but in 1944, they shared a common enemy, and that was enough.

The squadron’s job was reconnaissance. Go into Lapland. Figure out where the Soviets were. Figure out how many. Come back.

For two full days, Aimo and the others had skied through the wilderness in the Arctic Circle, covering mile after mile of snow-covered terrain, sleeping in makeshift shelters, rationing their food and water, looking for signs of Soviet activity.

They found none.

For soldiers trained for combat and prepared for the worst, this was quietly good news. The Soviet military was larger, better equipped, and had the kind of institutional muscle that could overwhelm a small Finnish reconnaissance unit without much difficulty. Not encountering them was not failure. It was survival.

But it also meant two full days of hard skiing with almost no rest.

By the morning of March 18th, Aimo’s body was registering everything it had been asked to do over those two days. His legs ached. His joints ached. His back ached. The cold — five degrees Fahrenheit, standard for Lapland in March — had settled into his bones in a way that food and fire could only partly address.

He sat by a campfire with his squadron, melting snow for tea.

Then the machine gunfire started.

—

A quarter mile up the mountain, a column of Soviet soldiers appeared on the ridge and began skiing downward.

They were shooting as they came.

Aimo’s lieutenant yelled the order to grab weapons and run.

For a moment — just a moment — Aimo stood frozen.

He was looking at the size of the Soviet force bearing down on them. He was doing the math. There were too many of them. Too heavily armed. Too fast.

He thought about his six siblings. He had told every one of them he would come home.

Then the lieutenant yelled again and Aimo grabbed his rifle and got on his skis.

—

He was at the front of the formation.

In Finnish military skiing tactics, the soldier at the front carries the heaviest burden. They push through unbroken snow, compressing a path that everyone behind them can follow. It is physically harder than following existing tracks. It costs more energy. And in a flat sprint for survival with gunfire coming in from behind, the energy cost matters enormously.

Aimo was cutting tracks.

For the first stretch, he held the lead. He could hear the bullets ricocheting off tree trunks, snapping overhead, punching into the snowpack around his skis. He could hear his teammates behind him. He could hear the Soviets getting closer.

And then he started slowing down.

Not because he wanted to. Not because he was afraid. His legs were simply giving out. Two days of near-constant movement in subzero temperatures, and then a full sprint with deep snow to push through — his body had reached a limit that willpower alone couldn’t override.

His teammates began passing him.

He reached into his pocket for the ration tin.

He took all of it at once.

He kept going for another minute or two.

Then he veered off the trail, lost control, tumbled sideways down the mountainside, and slammed into a tree trunk at the bottom.

He passed out.

—

When he opened his eyes, the forest was quiet.

The gunfire had stopped.

His teammates were gone.

The Soviets, apparently, had not found him — possibly because the crash had thrown him off the main trail, into terrain they didn’t bother to search. Possibly because they assumed he was dead. Possibly because they had other priorities.

He was alive. Alone. Deep in the Arctic wilderness.

And then he noticed the other thing.

He felt incredible.

Not in the way that people feel when they’ve had a good night’s sleep or a solid meal. In a deeper, stranger way — a total, almost supernatural alertness. He could hear the wind in the trees and identify how far away it was. He could see the shadows between distant trunks. Everything had a kind of crystalline clarity, like someone had turned up every sensory input to maximum.

He took stock.

Skis: still attached.

Boots: on.

Equipment: mostly intact.

Compass: still in his hand, which meant he had somehow not dropped it during the fall.

Rifle: still slung on his back.

No injuries he could feel.

Which was remarkable, given that he had just crashed headfirst into a tree.

He stood up.

He looked out across the white wilderness.

Six or seven miles away, on a distant mountain, there was smoke.

—

Aimo recognized the location.

His squadron had a pre-designated rendezvous point for exactly this situation — getting separated during a contact. If you lost your unit, you went there. If your unit lost someone, they went there and waited.

The smoke looked like Finnish soldiers. The lean-to shelters he could make out on the mountainside — the exact style the Finnish military used in the field — confirmed it.

He scooped up his gear.

He started skiing.

The energy that was moving through him felt inexhaustible. The cold didn’t register. The distance didn’t register. He skied toward that mountain the way a person runs toward something they can’t quite believe is real.

When he got close enough to see faces, he started shouting.

His comrades were there. His own unit. His own people.

He called out to them, waving, expecting recognition, expecting relief — expecting the exact opposite of what happened.

What happened was they grabbed their rifles and opened fire.

—

They shot at him.

All of them. His own comrades, his own unit, the men he had been skiing with for two days — they raised their weapons and started shooting at the figure skiing toward them out of the wilderness.

Aimo was already moving too fast to stop.

He had no choice but to keep going.

He skied straight through the middle of the camp, bullets snapping past him on both sides, shouting his own name as he went — “It’s me, it’s Aimo, stop shooting, it’s me” — and then he was through and on the other side of the mountain and still alive, still unshot, skiing away from the people who were supposed to save him.

For a long time after that, he kept going. He skied for hours after the campsite, until the sound of gunfire faded completely and he was alone again in the white silence.

He had no idea what had just happened.

He had the same uniform as them. The same weapon. He had been calling out in Finnish. They should have recognized him.

He kept going.

—

Night came.

He stopped and made camp. He built a fire. He forced himself to eat something, though he wasn’t hungry. He drank water, though he wasn’t thirsty.

He tried to sleep.

He couldn’t.

He lay in his shelter while wind and sleet moved through the trees around him and felt completely, wide-awake, hyper-alert — his mind racing, his body humming, not tired in any way he recognized.

The drug had been designed for this. It was doing exactly what it had been designed to do.

The problem was Aimo had taken an entire tin at once.

A standard Pervitin ration was a single tablet.

He had consumed somewhere in the neighborhood of thirty times a normal dose.

—

He was up before the sun.

Still not tired.

He got his skis on and headed south — or what he believed was south, based on his compass and his best approximation of where Finland’s front lines would be. He had been in Soviet-controlled Lapland, which meant south and west were his directions.

He skied through the morning. Through the afternoon.

His body kept moving with a consistency that started to feel less like strength and more like machinery. He was not making decisions about skiing. His legs were simply going. His brain had moved into some other register — not sharp and clear anymore, like it had been that first morning, but strange. Disconnected. Like watching himself from a short distance away.

The hallucinations started quietly.

A shape in the trees that might have been a person.

A sound that might have been voices.

Nothing he could confirm.

He kept skiing.

—

On the second night, he saw Matty.

Matty was a comrade — one of the men from his original unit. They had been together when the Soviets first attacked. If Matty was out here, it meant he had gotten separated too.

Aimo skied toward him. Matty gestured for him to be quiet, calm down, come close.

Aimo reached him.

Matty told him to lie down.

They lay in the snow together.

Aimo closed his eyes.

When he opened them again, he was standing up on his skis, skiing down a mountain, completely alone.

No Matty.

No backpack.

No rifle.

He had no memory of getting up. No memory of leaving. No memory of where his equipment had gone.

He was just skiing.

He didn’t know how long he had been skiing.

He didn’t know where he was.

—

It took him some time to process what was happening to him.

His thoughts were not tracking in straight lines anymore. They would start and then dissolve. He would think about his siblings and then find himself thinking about the fire by the campfire from two days ago, the pot of snow for tea, the sound of machine gunfire interrupting the morning. He would think about the rendezvous point and then realize he had passed it, or hadn’t reached it, or it didn’t exist.

He couldn’t be sure anymore what he had actually experienced and what he had only believed he experienced.

He had lost his weapon. He had lost his supplies. He was operating on no sleep, almost no food, almost no water, in the middle of the Arctic Circle in March.

“This is you dying,” he told himself. “This is what it looks like when you die.”

He kept skiing anyway.

—

This went on for days.

Not hours. Days.

No sleep. No food worth mentioning. No water beyond what he could eat in handfuls of snow. His body moving in long, grinding, mechanically relentless strides across the white landscape, while his mind drifted in and out of coherence like a radio station losing signal.

He didn’t know it, but Pervitin — crystal methamphetamine — can suppress hunger, thirst, the sensation of cold, and even the recognition of pain for extraordinary lengths of time when taken in large doses. The drug was essentially overriding every signal his body was trying to send him. He wasn’t feeling what he should have been feeling.

Which is also why, when he stepped on the first landmine, he didn’t feel it in the way a person normally would.

—

He had spotted a building.

He didn’t know what it was — military or civilian, Finnish or German or Soviet. His perception was not reliable enough to determine details at a distance. But it was a building. It was a structure. It meant the possibility of people, warmth, rescue, or at minimum a roof.

He pointed himself at it and went full speed.

As he got closer, he could make out that it was a military installation. German markings. Finnish troops were allied with Germans. This was safe territory.

He pulled off his skis.

He started running toward the front door.

His foot came down on something.

The world exploded.

He was thrown upward and then came crashing down into the snow. When he got his eyes open and looked at his foot, he could see the bones of his ankle sticking out through his boot. The blast had destroyed the structure of his foot completely.

He didn’t feel it the way he should have.

He got up.

He started moving toward the door on one foot.

He got close enough to reach for the doorknob.

He stepped on a second landmine.

Another explosion. Another fall. This time the other leg.

He lay in the snow and looked at both his legs and understood, with whatever part of his mind was still processing information correctly, that he was not going to walk to that door.

He turned and looked at the building.

It was empty. Abandoned. Dark windows. Nobody home.

He crawled to the nearest ditch.

He rolled in.

He waited to die.

—

He lay in that ditch for days.

The sun came up. Went down. Came up again. He lost count.

He was bleeding. Badly. Both legs mangled by the landmines. No food. No water. No shelter from the cold.

He had no explanation for why he was still alive.

At some point he looked up and saw a plane circling overhead.

He decided it was probably a hallucination.

Then he heard it land.

Then he heard voices.

Finnish voices.

He decided that was also probably a hallucination.

A face appeared over the rim of the ditch.

A young Finnish man, looking down at him.

Aimo looked back up.

The man reached down.

And Aimo Koivunen was pulled out of the ditch.

—

It was not a hallucination.

A Finnish military search plane had been running a sweep of the area and had spotted him from the air — the ditch, the snow disturbed around it, the shape of a man who might still be alive.

They landed.

They found him.

They put him on the plane.

Hours later, Aimo was in a hospital bed in Finland.

—

The doctors and nurses who received him were accustomed to treating soldiers in bad shape. They had seen frostbite, starvation, gunshot wounds, blast injuries, the full catalog of what a war in the Arctic could do to a human body.

They had not seen anything quite like Aimo Koivunen.

He weighed 94 pounds.

He was severely frostbitten. His legs were grotesquely damaged by the landmines — both of them, bones exposed, tissue destroyed. He was badly burned in places from elements of the blasts. His entire body showed the effects of extended severe hypothermia and malnutrition.

And his heart rate was 200 beats per minute.

Not from running. Not from pain. From resting.

He was lying in a hospital bed doing nothing, and his heart was hammering at 200 beats per minute — a rate that, sustained, can cause cardiac arrest. The nurses tried to bring it down. The readings stayed high. His cardiovascular system was still running the race long after the race was over.

When the doctors pieced together what had happened — when Aimo described the tin he had taken, and the doctors understood what Pervitin actually was and how much of it he had consumed — the whole story resolved into something both medically logical and completely astonishing.

He had taken roughly thirty times a standard dose of methamphetamine.

He had then been on a two-week survival ordeal in the Arctic Circle — shot at, separated from his unit, lost, blown up by not one but two landmines, and left lying in a ditch in sub-freezing temperatures with both legs destroyed.

And he had survived all of it.

Because the drug would not let him stop.

Because the drug was suppressing pain signals, hunger signals, thirst signals, and fatigue signals, overriding every message his body was trying to send him, keeping him moving on pure chemical mandate long after any unmedicated person would have stopped.

The soldiers who had opened fire on him at the rendezvous point — they probably did shoot at him, because an unrecognized figure skiing toward a Finnish encampment from the direction of Soviet-held territory was something you shot at first and identified afterward. But Aimo’s perception of it, his memory of what was said and who was where, was already fragmenting under the drug’s influence.

Matty — the comrade he lay down with in the snow — almost certainly did not exist. Or if he did, the interaction happened differently than Aimo remembered it.

The German installation may have been real. The landmines unquestionably were.

Everything else, the longer the ordeal went on, lived somewhere on the spectrum between distorted memory and outright hallucination.

—

Aimo Koivunen made a full recovery.

Both legs, eventually. The frostbite healed. The burns healed. His weight came back.

He got married.

He had nine children.

He lived to the age of 71.

He never took Pervitin again.

Not once. After everything it had done for him — after it had quite literally kept him alive through two weeks in the Arctic, two landmine blasts, near-starvation, severe hypothermia, and a level of physical punishment that should have killed him many times over — he never took it again.

Pervitin, the drug issued to Finnish and German soldiers as a standard military ration in the early 1940s, was eventually discontinued and banned. Its two primary documented downsides — besides the cardiac effects and the hallucinations and the extended psychosis and the frostbite that doesn’t feel like frostbite until the damage is done — were that it was extraordinarily addictive, and that users who stopped taking it often experienced crashes so severe they became incapacitated.

Aimo knew this.

He had been handed a tin of crystal meth by the Finnish military and had taken thirty times the recommended dose in one swallow and had survived on it for two weeks.

He understood, perhaps better than anyone alive, what that drug could do.

He never touched it again.

—

There is a detail in this story that stays with you, once you hear it.

When the Soviet soldiers first appeared on the mountainside and Aimo’s unit began to flee, Aimo was at the front of the formation.

He was the one cutting tracks.

In deep snow, the person at the front does the hardest work. They compress the path that everyone behind them follows. They spend more energy, take more out of themselves, so the others have an easier route.

It was the tracks that exhausted him.

It was the tracks that slowed him down.

It was the tracks that meant he couldn’t keep up, couldn’t stay with his unit, couldn’t maintain the escape.

He took the ration tin because he was desperate, and then his body gave out anyway before the drug kicked in, and he went tumbling off the mountain alone.

The tracks he had been cutting for everyone else were the thing that separated him from everyone else.

He survived anyway.

He came home.

He had nine children.

He lived to 71.

And wherever the tracks he cut through all that snow ended up — in how many feet of the Arctic they melted into, how many seasons they survived — some part of what he gave up trying to make the path easier for the people behind him eventually came back to him.

Not because of the drug.

Because of the plane.

Because someone looked down from high enough to see a shape in a ditch that might still be alive, and decided to land.

—

*If this story stayed with you — if the image of one man skiing alone through the Arctic for two weeks, blown up twice, waiting in a ditch, not quite able to die — there are hundreds more waiting.*

*The ones that don’t let go are the ones where the survival shouldn’t have been possible.*

*And yet somehow it was.*