Answer: I would say this is true, during the civil war believe it or not the confederates won most of the wars during that time besides being out matched and outnumber because of their guerilla warfare tactics which was never really used at the time. They also had many great generals and among them general Robert E. Lee one of the best generals at the time.
Explanation: have a great day lad, i dont specialize in the civil war ( mostly ww1 and 2) but i hope this helps you