Question: who is the greatest military strategist of all time?
Answer: Ghengis Khan. Genghis Khan conquered more than twice as much as any other man in history. ... 
Hannibal. Hannibal might be one of the top strategists of all time. ... 
Scipio Africanus. ... 
John Boyd. ... 
Napoleon. ... 
“Desert Fox” Erwin Rommel. ... 
Robert Moses. ... 
William Tecumseh Sherman.