>Can you imagine travelling today to a foreign country ready to die for fighting oppression? I have never seen such kind of conviction in my life.

There were russians who fight in Ukraine and if you ask ISIS fighters they will tell you they are fighting to spread the-one-true-religion which is similar to fighting to spread the-one-true-ideology with minor differences.

Also fighting oppression was what was sold to US soldiers going to the Mid East at least partially.