It does. The first thing a good military commander learns is that choosing where to have your battle - and ensuring it happens there - is most of the work,
The Battle of Cannae used to be a set text in British (and presumably US) officer training corps. I know it was taught at Sandhurst. The Germans were obsessed with it before WW1 - it was the basis of the Schlieffen Plan.
"Battle of Cannae ? Whossat then ?"
That, my military loving friend, is the sound of your ignorance.