Jozef Gabčík stepped into the road, raised his Sten submachine gun at the open-topped Mercedes convertible slowing for the hairpin turn, and pulled the trigger. Nothing happened. The weapon jammed. In that fraction of a second—the difference between a clean kill and catastrophe—the entire trajectory of Operation Anthropoid lurched sideways, and with it, the fate of a village called Lidice.
The Man with the Iron Heart
Reinhard Heydrich was not just another Nazi official. He was, by Hitler's own description, "the man with the iron heart." As commander of the Reich Security Main Office and acting Reichsprotektor of Bohemia and Moravia, Heydrich had become one of the principal architects of the Holocaust. Historians regard him as one of the most sinister figures within the Nazi regime—a man whose ruthless efficiency in organizing mass murder made him indispensable to the machinery of genocide.
By May 1942, Heydrich had ruled the Czech lands with calculated terror for eight months. He crushed resistance networks, executed hundreds, and deported thousands to concentration camps. Yet he also reduced arbitrary terror in favor of targeted repression, keeping Czech workers productive for the German war machine. His effectiveness made him dangerous. The Czechoslovak government-in-exile in London understood that killing Heydrich would be both a symbolic blow and a practical disruption.
Operation Anthropoid was their answer. Two agents—Jozef Gabčík, a Slovak, and Jan Kubiš, a Czech—parachuted into the Protectorate in December 1941 with a single mission: assassinate Reinhard Heydrich.
A Hairpin Turn and a British Defect
The assassination site was chosen with care: a sharp bend on the road from Heydrich's country residence to Prague Castle, where his car would have to slow almost to a stop. On the morning of May 27, 1942, the two agents waited. Gabčík carried a Sten Mk II submachine gun, a British weapon known for its cheap, rapid production—and its troubling tendency to malfunction.
When Heydrich's dark green Mercedes appeared, everything aligned. The car slowed. Gabčík stepped forward and aimed. Then the Sten's bolt jammed, likely from a cartridge feed failure, a known defect in early Sten production. In the silence where gunfire should have erupted, Heydrich made a decision that would cost him his life: instead of ordering his driver to accelerate away, he commanded the car to stop and reached for his pistol.
The Sten gun's malfunction transformed what was planned as a swift execution into a chaotic, improvised attack—the kind of desperate moment where history pivots on mechanical failure.
Kubiš, positioned nearby, threw a modified anti-tank grenade at the stopped vehicle. It exploded against the rear wheel, shredding the car's body and driving fragments of upholstery, metal, and horsehair from the seat into Heydrich's torso. He staggered from the car and collapsed. The attackers fled, believing the wound might not be fatal.
They were wrong—but slowly. Heydrich underwent surgery and appeared to recover. Then, on June 4, 1942, he died from septicemia. The likely cause was infection from the debris driven into his spleen. The man with the iron heart was killed not by bullets, but by the contaminated stuffing of his own car seat.
A Village Erased for a Letter
Nazi retaliation was immediate and vast. Over 13,000 people were arrested. Hundreds were executed. But the most documented horror fell upon Lidice, a small mining village twenty kilometers northwest of Prague. The connection between Lidice and the assassination was tenuous at best—German intelligence had intercepted a letter they believed linked a Lidice family to the parachutists. The evidence was circumstantial, possibly mistaken.
It didn't matter. On June 10, 1942, acting Reichsprotektor Kurt Daluege—Heydrich's successor—ordered Lidice's complete destruction on Hitler's direct command. This was not a military operation. It was annihilation.
All 173 men and boys over fifteen were shot. The women—184 of them—were sent to Ravensbrück concentration camp. Of the children, a handful deemed suitable for "Germanization" were taken by SS families. The rest, 82 children, were gassed at Chełmno extermination camp. Every building in Lidice was burned, demolished, and leveled. The stream was diverted. The cemetery was dug up. The village was erased from maps.
What makes Lidice's destruction historically significant is precisely how meticulously it was documented. The Nazis filmed and photographed the demolition, intending it as a warning. Instead, they created an archive of atrocity that spread worldwide. "Lidice" became a rallying cry for Allied nations. Towns in Mexico, Brazil, and the United States renamed themselves in solidarity. The name Hitler wanted erased became unforgettable.
The Unexpected Aftermath
The assassination's ripples extended beyond geopolitics. Reinhard Heydrich had a younger brother, Heinz, who served in the German military. After Reinhard's death, something changed in Heinz Heydrich. Whether from guilt, horror at what his brother had represented, or some other motive that died with him, Heinz began helping Jews escape the Holocaust. He used his position and his family name—the very name that symbolized Nazi terror—to forge documents and facilitate escapes.
Heinz Heydrich died in November 1944, apparently by suicide as the war turned irreversibly against Germany. The full extent of his rescue activities remains unclear, but the documented cases suggest he saved multiple lives. The brother of one of the Holocaust's principal architects became, in secret, part of its resistance.
This strange footnote captures something essential about Operation Anthropoid's legacy. The assassination did not cripple the Nazi machine. The Holocaust continued. The war ground on for three more years. Heydrich was replaced. But the operation shattered the myth of Nazi invulnerability in occupied Europe and demonstrated that even the most protected figures could be reached.
The cost was catastrophic—Lidice, the village of Ležáky (also destroyed in reprisal), the hundreds executed, the parachutists themselves cornered and killed in a Prague church after a traitor revealed their hiding place. Whether the operation was worth this price has been debated ever since.
But return to that hairpin turn on a May morning. A Slovak agent raises a British-made submachine gun at one of the most dangerous men in Nazi Germany. The Sten jams. Everything that follows—the grenade, the slow death, the hunting of the assassins, the obliteration of Lidice, even a brother's secret redemption—cascades from a mechanical failure lasting perhaps two seconds.
History remembers the assassination. It rarely remembers that it wasn't supposed to happen this way—that the plan called for bullets, not shrapnel, for a clean kill, not a festering wound. The Sten gun's malfunction turned a calculated strike into something messier, more desperate, and ultimately more consequential. Heydrich died not from the attack as planned, but from its chaotic improvisation. And because the attack went wrong, because there was pursuit, because there was investigation, because there was circumstantial evidence pointing to a small village, Lidice was destroyed.
The overlooked variable isn't the bravery of the agents or the horror of the reprisal. It's a defective bolt in a mass-produced weapon—the kind of detail that military history usually smooths over. That jammed Sten changed how the most important Nazi assassination unfolded, and in doing so, changed what came after.