Inthefallof2016,anarmyofover100,000IraqisoldiersandmilitiamenmobilizetoliberateMosul,Iraq'ssecondlargestcity,fromtheclutchesoftheIslamicState.AliMula,anIraqijournalist,joinsthisarmyofuneasyallies--includingSunnis,Shiites,ChristiansandKurds--tofindoutiftheycanputasidetheirsectariandifferencesandfinallyfreetheircountryfr..aaa