Napoleon, emphasizing the role of generals, once said:

"The personality of a general is essential. He is the brain, and he is the whole army. Gaul was not conquered by Roman legions, but by Caesar. It was not the army of Carthage that made Rome tremble, but Hannibal. It was not the Macedonian phalanx that invaded India, but Alexander. It was not the French army that reached the Weser and the Rhine, but Tuyunni. In the Seven Years' War, Prussia was able to defend itself against the three great powers of Europe, not to the Prussian soldiers, but to Frederick the Great. ”