Fascist dictator Mussolini, ruling Italy 1922-1943, aligned with Hitler, and was executed in 1945, his body displayed in Milan's Piazza Loreto.
Ruling from 1979, oppressed Iraqis through violence; his regime fell in the early 2000s, leading to his capture in 2003, trial for war crimes, and eventual hanging.
Muammar Gadhafi, in power from 1969, ruled Libya for 42 years, suppressing dissent until a 2011 uprising, leading to his capture and execution in October.
Known for oppression and economic mismanagement, fled during 1989 rebellion, captured, and executed with his wife on Christmas Day.
Romania's WWII-era dictator, allied with Hitler, and responsible for the deaths of 400,000, was overthrown in 1944, tried for war crimes, and executed in 1946.
In power from 1961, used "guided democracy," repressed opposition, declared martial law in 1972, and was assassinated in 1979.
Japan's WWII prime minister, resigned in 1944, arrested for war crimes, and sentenced to death by hanging after the country's surrender in 1945.
A collaborationist during WWII, led a short-lived regime, sent over 1,000 Jews to their deaths, and was executed for war crimes in 1945.
Unpopular due to his policies and wars, faced a swift downfall as his wife Catherine plotted against him, resulting in his abdication, arrest, and eventual assassination.
Last Romanov emperor, faced unrest, Bloody Sunday in 1905, mismanagement of WWI, abdicated in 1917, executed with family.