Genghis Khan's ability to manipulate people and technology represented the experienced knowledge of more than four decades of nearly constant warfare. At no single, crucial moment in his life did he suddenly acquire his genius at warfare, his ability to inspire the loyalty of his followers, or his unprecedented skill for organizing on a global scale. These derived not from epiphanic enlightenment or formal schooling but from a persistent cycle of pragmatic learning, experimental adaptation, and constant revision driven by his uniquely disciplined mind and focused will. His fighting career began long before most of his warriors at Bukhara had been born, and in every battle he learned something new. In every skirmish, he acquired more followers and additional fighting techniques. In each struggle, he combined the new ideas into a constantly changing set of military tactics, strategies, and weapons. He never fought the same war twice.