Who were the two leaders of the roman government

There were two consuls at a time and they only served for one year. This kept any one man from becoming too powerful. The fall of the Roman Republic began in 59 BC with an alliance between three powerful Roman politicians: Julius Caesar, Pompey the Great, and Marcus Licinius Crassus.

Explanation:

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

your answer is

to dominate europe

and i know for a fact it can't be the others