>What country has been the bad guy most consistently throughout history?
Assyrians
>Most brutal conquerers of the Ancient world, famous for their penchant for beheading, skinning and flaying their enemies... cruel with no redeeming qualities, all their enemies united to topple them down.
Romans
>Imperialist Slaver Empire with a love for sacrifices at the arena, they literally rounded up Christian families (ir any other religion that was not approved) and threw them to the lions
>Huns
Cruel steppe nomads that built nothing of value, Huns only respected brute forcem Attila rose through their ranks by killing his own brother, Bleda, and calling himself the "Scourge of [the war] God". They proceeded to rampage across Europe leading to mass migrations of other barbarians just running away from them.
Aztecs
>Religious fanatics who loved flaying, skinning, beheading and ripping the hearts out of their live victims. Famous for their cruelty and hated throughout Mesoamerica, all the other tribes joined the Spaniards against them.
Mongols
>Looters with little redeeming features, the Mongols under Genghis Khan caused the largest number of deaths ever caused by a ruler until Stalin, Mao and Hitler. They put entire cities to the torch, with victims numbering the tens of millions, and burned repositories of knowledge such as the Great Library of Baghdad.
>30 to 45 million victims
Imperial Japanese
>Unlike other Axis powers, the Japanese made many of their atrocities against Chinese and other Asian civilians public... at least 12 million civilians were executed, bombed, or genocided as the Japanese army rampaged through Asia. Fanatical to their Emperor and truly believing themselves superior, the Japanese of the era were capable of some of the worst atrocities in WW2, such as those commited by unit 731.
Then comes the classics
>Nazi Germany
>Stalinist USSR
>Maoist China
Between 15 and 35 million victims each