Mass suicides in 1945 Nazi Germany comes to mind.
There were several reasons why "some" decide to end there lives.
1) Nazi propaganda had created fear among some section of the population about
the impending military invasion of their country. Jw abandon in the wicked world.
2) Many had been indoctrinated in unquestioning loyalty to the party and with its cultural ideology of
preferring death over living in defeat.
3) Finally, others killed themselves because they knew what would happen to them following defeat, war
criminals. JW the damage they have done to love ones who left the organization.