Napoleon’s military system rested on speed, concentration and aggression. He organised his army into self-contained corps, each with its own infantry, cavalry and artillery, capable of marching independently and fighting alone until reinforced. This allowed him to advance on a broad front, screening his intentions, and then concentrate overwhelming force at the decisive point faster than his opponents could react. The strategy of the central position, his signature approach, meant placing his army between two enemy forces and defeating each in turn before they could unite.
He was a superb reader of terrain, choosing ground that multiplied his advantages: the Pratzen Heights at Austerlitz, the crossing at Arcole, the reverse slopes he used at Rivoli. His artillery background gave him an instinctive understanding of firepower and its concentration. He drove his men hard on the march but rewarded them with victory, promotion and plunder. His personal energy was extraordinary: he could work eighteen hours a day, dictate orders to multiple secretaries simultaneously, and retain the details of every regiment’s strength and position.
The counterarguments are substantial. After about 1807, some historians argue, his generalship became more rigid: he relied increasingly on frontal assault rather than manoeuvre, and his battles grew costlier. He struggled to delegate effectively, appointing marshals who excelled as corps commanders but faltered when given independent authority (Ney at Quatre Bras, Grouchy after Ligny). His strategic overreach in Spain and Russia, where he committed armies to campaigns he could not supervise in person, was catastrophic. Whether this represents a decline in ability or simply the impossibility of controlling an empire that stretched from Lisbon to Moscow remains debated by military historians. What is not disputed is that at his best, between 1796 and 1809, he was the most formidable battlefield commander in European history.