In WWII, the Japanese army convinced 22,000 people to commit suicide!

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

In an attempt to defy the US government, the citizens of the island of Saipan commited mass suicide. Due to the propaganda laid out by the Japanese army, they feared that US troops would torture and murder them if they didn’t.
Most of the citizens walked into the sea or jumped out off the cliffs. At Marpi Point, a steep 250-meter precipice, American soldiers saw entire families jumping into the water.
First the older children pushed the younger children over the edge, then the mothers would push the eldest children, and the fathers would push in the mothers and themselves.