cairo islamic state threaten attack u.s. soil retaliation trump administration decision recognize jerusalem capital israel one group social media account report thursday without give detail message one account telegram instant message service title wait us isis manhattan group say would carry operations show image new york time square appear explosive bomb belt detonator ops land final hour burn flame war start iraq yemen libya syria afghan wait say recognition dog trump sic jerusalem capital israel make us recognize explosives capital country washington trigger widespread anger protest across arab world decision jerusalem dispute city revere jews christians muslims alike home islam third holy site heart israeli-palestinian conflict decades islamic state drive iraqi syrian capitals year squeeze shrink pocket desert straddle border two countries force fight islamic state iraq syria expect new phase guerrilla warfare militants include people claim allegiance islamic state carry score deadly attack europe middle east africa asia unite state past two years islamic state threaten u.s. attack jerusalem decision statement