Caesar had fought in many battles or wars and became a part of Roman politics and that is how he became dictator of Roman Empire and he ruled just for one year because he was assassinated by political rivals" Gaius Cassius Longinus and Marcus Junius Brutus" at a military camp on a modern day Iraq. But Cesar was a nobleman who helped peoples of Roman.
The importance of spreading the faith was to save Indians from heathenism and prevent them from falling under the sway of Protestantism. Enslaving the Indians was justified as a means of liberating them from their own backwardness and savagery and enabling them to become part of christian civilization.
Railroads helped connect the east and the west