baghdad iraq demand thursday u.s. government backtrack decision recognize jerusalem israel capital avoid fuel terrorism prominent iraqi militia say decision reason attack u.s. troop president donald trump reverse decades u.s. policy wednesday recognize jerusalem capital israel imperil middle east peace efforts upset arab world western ally alike caution dangerous repercussions decision stability region world iraqi government statement say u.s. administration backtrack decision stop dangerous escalation would fuel extremism create condition favorable terrorism say iran-backed harakat hezbollah al-nujaba say trump decision could become legitimate reason attack u.s. force iraq trump stupid decision make jerusalem capital zionist big spark remove entity body islamic nation legitimate reason target american force say group leader akram al-kaabi u.s. lead international coalition help iraq fight islamic state provide key air grind support 5,000 troop deploy iraq nujaba 10,000 fighters one important militias iraq though make iraqis loyal iran help tehran create supply route iraq damascus fight umbrella popular mobilisation force pmf mostly iranian-backed coalition shi ite militias play role combat islamic state pmf government sanction formally report prime minister haider al-abadi office iraq demand u.s. backtrack jerusalem militia say troop target