Im not even sure the guy Im thinking of is Sun Tzu, he probly is, but I know this person had been military strategist for his life, and he had never lost a single battle, and guess how many battles he had? .... countless, Ive read bit of his book, its pretty interesting... (this is BCE, I think)
Theres also one from Three Kingdoms, who follows the teachings of the guy that I just mentioned, (this is around year 190~200 FYI) hell, there were alot of great strategist in this time, all three kingdoms had them, I always wondered how they'd do if they were in the modern times...
but then again.. thers Genghis Khan