ANALOGY FOR SHAPING THE BATTLESPACE
Consider that you intend to play a game of chess with another person and you intend to win. Then, in addition to being able to move the pieces, you can change the shape of the board itself before you even sit down to play. And perhaps the other person has never played a game of chess before, so you rewrite some of the rules of the game. Then you play a game.
That's shaping the battlespace.