Here's a handy link for anyone watching developments in the Middle East with growing alarm. The Atlantic presents:

Nick Danforth writes:

[T]hese maps provide a more fluid perspective on the Middle East, often by showing what didn’t happen as opposed to what did. But for all these maps don’t show, they do illustrate one thing: the sobering fact that no one map—or even set of maps—can ever explain the region’s complex history and politics.