After Italy's surrender in September 1943, Nazi Germany occupied Rome and imposed a regime of fear, arrests, and repression. As resistance activity intensified, a partisan bomb attack on 23 March 1944 killed 33 German policemen in Via Rasella.

The German response was immediate and ruthless. On Adolf Hitler's orders, 335 Italian civilians, political prisoners, resistance members, and Jewish hostages were selected and taken to the Ardeatine Caves outside Rome. There, they were executed in secret and buried beneath tons of rock.

Among the victims were teachers, workers, officers, priests, fathers, and sons—many of whom had never been charged with any crime. After the war, the perpetrators were hunted across Europe and brought before the courts. The massacre became one of the most infamous Nazi atrocities in Italy and remains a lasting symbol of occupation, terror, and the pursuit of justice.