On 29 September 1944, the Monte Sole region became the target of a brutal operation intended to eliminate partisan resistance. Over the next seven days, 770 people were killed in 115 separate attacks across homes, villages, and churches. Among these were victims who had sought sanctuary in the Casaglia church, hoping their faith would protect them.

Ninety women and children, accompanied by the priest Don Ubaldo Marchioni, gathered within the church walls. When German soldiers arrived, some tried to escape but were followed by gunfire. Among them was a paralyzed woman, who had been brought to the church. When the soldiers ordered the group to move to another village, she insisted the others go on without her and remained behind. She was killed, while the rest were forced to march.

Only about 100 meters further, another unit of German soldiers intercepted the group. The priest asked if they could walk to another village, but the soldiers instead commanded them to gather at the nearby cemetery.

There, civilians were pressed against walls, facing machine guns. One survivor recalled feeling pain and fainting. Later, when soldiers left, she discovered her mother was still alive but lost her leg. While trying to get help in the nearby villages, she found only corpses.

Today, both the cemetery and the church serve as memorials. On the crosses in the cemetery, marks of bullets could still be found. The church, built in 1665, is in poor condition due to war damage and decades of neglect.