Will Porter returns to Foreign Policy Focus to cover the fall of ISIS. This episode is the second in a two-part series on the rise and fall of ISIS, the first show can be found here. In this part of the series, Will details how the US and Russia became involved in Syria. Will covers the liberation of Mosul and Raqqa. Will explains how the War against ISIS has impacted the Syrian Civil War. Will also gives analysis on what to expect now that the caliphate is dead.