The underlined sentence "This led them to Caesar after seeing how he defeated many enemies across Europe and Africa" develops the central idea that the Roman senators feared Caesar by illustrating his power and military prowess.
1. The mention of Caesar defeating many enemies across Europe and Africa highlights his military achievements and conquests, showcasing his strength and dominance.
2. This display of Caesar's capabilities would have instilled fear in the Roman senators as they witnessed his successful campaigns and the extent of his influence.
3. The senators, being aware of Caesar's victories and expanding power, would have perceived him as a significant threat to their own authority and control within the Roman Republic.
4. Therefore, the underlined sentence contributes to the central idea that the Roman senators feared Caesar due to his military achievements and the implications of his growing strength and influence in the region.