Iranian President Hassan Rowhani (R) poses for a picture with Oman's Sultan Qaboos bin Said (L) during the latter's welcoming ceremony at Tehran's Saadabad Palace on August 25, 2013. The Iranian authorities have announced that Sultan Qaboos of Oman, the only Gulf leader to maintain good relations with Tehran, arrived in Iran for a focus on economic issues and diplomacy visit. AFP PHOTO/BEHROUZ MEHRI (Photo by Behrouz MEHRI / AFP) (Photo credit should read BEHROUZ MEHRI/AFP/Getty Images)
