Gnaeum Pompeium, more commonly known as Gnaeus Pompeius Magnus or Pompey the Great, was a prominent Roman general and statesman during the late Republic. He played a crucial role in the transformation of the Roman Republic into the Roman Empire, influencing military and political developments during Caesar's Gallic campaigns and beyond. His actions and rivalry with Julius Caesar are pivotal to understanding the context of civil strife in Rome, especially during the events leading up to and during the Gallic War.