Why did the Bolsheviks kill the Romanovs?

Yes. Pro Czarist 'White' Russian troops were approaching the town where the Czar and his family were under house arrest. If they had freed the Czar and his family, this would have been a tremendous boost to the 'White' cause for 2 reasons.

Firstly, it would have lent full legitimacy to their cause - as things stood, they had no obvious candidate as head of state, so even if they defeated the Bolsheviks nobody had any idea of what would happen next. Having the Czar, or even one of his children, in their hands would change this completely; they could claim to be fighting for a Czarist restoration, a clear cause easy for ordinary Russians to understand and identify with. Secondly, the Czar,or his children, as international political figures, could ask for aid from, and even make full alliances with, foreign powers.

Any such formal alliances could have fatal consequences for the Bolsheviks, their Revolution, and their leadership. So, from the Bolshevik point of view the Czar and his ... more.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.