PRI's The World Published by PRI's The World Mosul after ISIS will be a test for all of Iraq Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/673441/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Few doubt that the US-backed alliance will beat the Islamic State out of the Iraqi city of Mosul. But solving that problem is expected to unleash new struggles in Iraq and beyond. Here are some of the biggest challenges ahead.