User blog comment:Thedoucheinthenorth/The Civil War - Why it is great/@comment-5469467-20121101051603/@comment-3492791-20121102154711

It is the same amount of forces regardless of how you split them up. However a unified force under a single command is tactically superior to 4 smaller groups acting independently toward the same goal.

Let me provide an example. If you have ever played a team multiplayer game you may know this. A team that actually uses teamwork is able to corrdinate and wins more easily. If everyone on your team acts independently (as is usually the case), it is a bunch of loose cannons with no corrdination and usually has a harder time winning as there is little fore-planning.