Russian Defense Minister Sergei Shoigu delivers a speech during the 5th Moscow Conference on International Security (MCIS) in Moscow, Russia, on April 27, 2016. The 5th Moscow Conference on International Security is held here with main topic of fighting terrorism this year. (Xinhua/Dai Tianfang)

Delegates attend the 5th Moscow Conference on International Security (MCIS) in Moscow, Russia, on April 27, 2016. The 5th Moscow Conference on International Security is held here with main topic of fighting terrorism this year. (Xinhua/Dai Tianfang)