I've made one, and posted it! See it in the Game Developement section - Called Squareland Wars - it's kinda simple, but it still was quite an adventure making it.
Sorry, for not posting code, you could view, but I'm affraid you'd either not understand it, or it'd be too long. I won't even mention how long the code is for the AI.
I'm making a sequel to it, so you'll see strategy games comming from me!
