I watched Anthropoid last night.
The movie tells the story of a bit of WWII history. Some people parachute into Czechoslovakia and find a way to assassinate Heydrich the Nazi leader.
The assassination plotters die but they die for their cause. Heydrich is killed. The friends and family who had helped the plotters are killed or take cyanide and die by their own choice.
Around 5000 Czechs are then also killed by the Nazis in retaliation for the killing of Heydrich.
Was it worth it? I don’t know. I think that assassination of tyrants is a moral thing.