Saddam Hussein

This distraught-looking young boy eventually brought despair on an entire country. Saddam formally rose to power as the fifth President of Iraq in 1979. The brutality of his dictatorship was challenged in 2003 when the United States and the UK invaded Iraq to depose Saddam for possessing weapons of mass destruction and having ties to al-Qaeda.

Heinrich Himmler

He was the commander of the SS Schutzstaffel and head of the concentration camps. He was the mastermind who gassed inmates with toxic poison in chambers and systematically worked and starved them to death. He is also responsible for the genocide of millions.