How does chernows point-by-point comparison of these two enemies add to the strength of his concluding paragraph?

Chernow's point-by-point comparison of the two enemies highlights their contrasting qualities and motivations, effectively illustrating the complexity of their rivalry. This detailed examination reinforces his concluding argument by showcasing how their differences shaped the broader historical narrative. By delineating their strengths and weaknesses, Chernow emphasizes the significance of their conflict and its impact on the future. Ultimately, this comparison enriches the reader's understanding of the stakes involved, making the conclusion more compelling and thought-provoking.