Negotiating a true peace in the middle of a horrendous war is sometimes a task for only the feint-hearted. This moment in Ukraine’s war to repel Russia’s invaders may be one of those times. And Crimea, where no combat is happening, may become the key prize that can make a Ukraine-Russia peace happen. We’ll see. It all just began this week, with the whole world watching — but with few viewers actually seeing it for the potential turning point it can be. After all, we couldn’t see behind the closed doors, couldn’t hear the global conference calls in which the on, then off, then on-again deal was…