This is from the Maps of War site, developed (somewhat mysteriously) by ” a Flash-Designer hobbyist and professional history- buff,” who hopes to help us “place today’s war headlines into a greater historical context.”
Not every map is as elaborate (or successful) as her/his “Imperial History” of the Middle East, but the Maps are a great idea and worth a visit now and again. (It did make me feel dumb, too. Who were the Sassanid or the Seljuk?)