Iranian President Hassan Rouhani (L) awards a honor medal to Head of Atomic Energy Organization of Iran (AEOI) Ali-Akbar Salehi in Tehran, Iran, on Feb. 8, 2016. President Hassan Rouhani awarded the Iranian nuclear negotiating team on Monday with medals of honor for clinching an historic deal with world powers in July last year. (Xinhua/Ahmad Halabisaz)

Iranian Defence Minister Hossein Dehghan (2nd, L), President Hassan Rouhani (3rd, L), Foreign Minister Mohammad-Javad Zarif (4th, L) and Head of Atomic Energy Organization of Iran (AEOI) Ali-Akbar Salehi (5th, L) pose for photos during a honor medal awarding ceremony in Tehran, Iran, on Feb. 8, 2016. President Hassan Rouhani awarded the Iranian nuclear negotiating team on Monday with medals of honor for clinching an historic deal with world powers in July last year. (Xinhua/Ahmad Halabisaz)

Iranian President Hassan Rouhani delivers a speech at a honor medal awarding ceremony in Tehran, Iran, on Feb. 8, 2016. President Hassan Rouhani awarded the Iranian nuclear negotiating team on Monday with medals of honor for clinching an historic deal with world powers in July last year. (Xinhua/Ahmad Halabisaz)

Iranian President Hassan Rouhani (L) awards a honor medal to Foreign Minister Mohammad-Javad Zarif in Tehran, Iran, on Feb. 8, 2016. President Hassan Rouhani awarded the Iranian nuclear negotiating team on Monday with medals of honor for clinching an historic deal with world powers in July last year. (Xinhua/Ahmad Halabisaz)

Iranian President Hassan Rouhani (L) awards a honor medal to Defence Minister Hossein Dehghan in Tehran, Iran, on Feb. 8, 2016. President Hassan Rouhani awarded the Iranian nuclear negotiating team on Monday with medals of honor for clinching an historic deal with world powers in July last year. (Xinhua/Ahmad Halabisaz)

Iranian President Hassan Rouhani delivers a speech at a honor medal awarding ceremony in Tehran, Iran, on Feb. 8, 2016. President Hassan Rouhani awarded the Iranian nuclear negotiating team on Monday with medals of honor for clinching an historic deal with world powers in July last year. (Xinhua/Ahmad Halabisaz)