Well, he fought in Gaul for 8 years and then the civil war for I think it was about 4 years. Right there that's 12 years. Nathan Bedford Forest by comparison during the 4 years of the American Civil War came under fire 150 times give or take 10 according the Jack Hurst. If Caesar is conflating skirmish with battle then I think 300 is certainly possible. And perhaps he meant 300 victories and just failed to disclose the number of losses. As for the actual quote it's in Stacy Schiff's Cleopatra: A life, so you'll have to take it up with her.I know this isn't central to the thread's theme, but I've never come across this quote before, and if he did claim such a thing and it has any truth to it rather than being a grandiose bit of rhetoric, the majority of these 300 battles would have to have been mere skirmishes. A great thing about Caesar is that we have his commentaries on the Gallic campaigns and the civil war, and so we know about his battles. There aren't nearly that many.