Castles and Keeps and Fortresses and Bastions, Oh My!

That's no moon—it's a fortress!A competent commander knows that all-out battle is a two-edged sword—the thrill of victory and thebrutal sting of defeat are right there for the taking.  A good, or even just a mediocre general won’t engage unless there’s a compelling reason.  That is, no one fights a battle “just because”.  It’s nice for writers to have armies show up on a field and then throw down in a spectacular blood-fest of winner-take-all, but there still needs to be a reas...