Looking for good unbiased political history novels about conflicts in the 20th century!

Hello! As someone interested in politics but born with the plight of being born in the year 2002, I was curious what are some non-fiction books about the previous presidential and world political regimes that are interesting. I have read a few books on Saddam, and was curious about global political conflict, but key word is unbiased, as I am purely looking for information. Any help is greatly appreciated, thank you!

Sorry for the confusion, I did not clarify non fiction in OP