Governments brainwash people so hard that they think they must contribute and give their life force to the government, and even die.
I'm from Israel, The brainwashing of the "Palestinians" is so strong that they are willing to die and murder random people on the street, in the name of the government's lies.
The same thing on the Israeli side, the government sends a group of young people to die in a war they created for the interests of certain people, and they call these people "heroes."
Part of the brainwashing is to make people think you are a hero if you die for the country.