Russia will deliver the first S-300 air defense systems to Iran in September or August.

MOSCOW (Sputnik) – The first delivery of S-300 air defense systems to Iran will occur in August or September 2016, the head of the state production company Rostec said.

"I think we will deliver the S-300 by the end of the year…The first delivery will be in September or August," Sergei Chemezov said in an interview with The Wall Street Journal.

By Sputnik News