Iran's Foreign Minister Mohammad Javad Zarif (bottom) speaks under a portrait of supreme leader Ayatollah Ali Khamenei in the parliament in Tehran on July 21, 2015 to defend last week's Vienna accord which will see the lifting of sanctions imposed on Iran because of its nuclear programme. Zarif said that the country had achieved a "balanced" nuclear deal with world powers, telling lawmakers there was a need to accept the negotiations had required compromise. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP/Getty Images)
