Hey! I believe there was a discussion held on this long ago, and the consensus was the this would be split into two different skills, Strategy and Tactics.
Think of Tactics more as like, hands on types of things: telling troops where to go (on the field), formations, and general in-battle stuff. This would feel more like a lieutenant or field commander, etc..
Strategy would be more like a, well, strategist. They plan the battle, design supply lines, tell troops where to go (as in, picking the fights), ration, etc.. So this would be more like a general or other higher ranking official/strategist.
Here is a short discussion on the topic, though the skill was never written up,
This is Tactics!Although for the final say, I defer to the blue names