Iraqi prime minister Heidar al-Abadi, left, shakes hands with Iranian Vice President Eshagh Jahangiri, right, for photographers in an official arrival ceremony, in Tehran, Iran, Tuesday, Oct. 19, 2014. Rouhani said Iran will stand by its neighbor Iraq in its fight against the Sunni extremists of the Islamic State group and will continue to provide Baghdad with military advisers and weapons, according to a report by the official IRNA news agency. He also criticized the U.S. for allegedly failing to sufficiently support Iraq. (AP Photo/Ebrahim Noroozi), APTOPIX