^The second. The first one understood how to do a punitive expedition (and how to deal with Russians). He wasn't a neocon.

It shouldn't be too hard to isolate ISIS in Mosul now the Kurds have cut them off from the north- something like the Anaconda Plan in the US Civil War, writ small. Little or no traffic in or out of Mosul doesn't look like it would be too difficult to manage.