You can delete it, yes. You will be left with a pretty useless boat anchor (modern PCs are not heavy enough for the job). You NEED an operating system on the hardware in order to turn the PC from a boat anchor into a useful computer.
Windows 20 is that OS.
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.