They shook hands on 26 September 2013 in the United Nations Headquarters for the first time .
Pictured here , Iranian Minister of Foreign Affairs Mohammad Javad Zarif and U.S. Secretary of State John Kerry shaking hands at the end of negotiations on 14 July 2015 , Vienna .
Iranian shook hands on 26 September 2013 in the United Nations Headquarters for the first time .
Pictured here , Iranian Minister of Foreign Affairs Mohammad Javad Zarif and U.S. Secretary of State John Kerry shaking hands at the end of negotiations on 14 July 2015 , Vienna .