as white house aides here readily acknowledge, the president will need political backing for this and any subsequent move he makes in iraq. >> glor: in iraq, sunni and shiite political leaders made a joint call for national unity in the battle against sunni militants. last week, the militants seized iraq's second largest city, mosul. clarissa ward has the aftermath. >> reporter: on the road into mosul, the charred remains of military equipment left as iraqi soldiers fled. this video, shot by a local journalist for a french news channel, offers a rare glimpse of life in the city one week after it was taken over by the al qaeda splinter group isis. the markets are open and well stocked. but masked gunmen roamed streets. a long line snakes outside the isis recruiting center. here in baghdad, there is also recruiting, as thousands of volunteers join shiite militias.