Ukraine's state security service (SBU) chief Vasily Gritsak speaks during a news conference in Kiev, Ukraine, June 6, 2016. © 2017 REUTERS/Valentyn Ogirenko
Ukraine's state security service (SBU) chief Vasily Gritsak speaks during a news conference in Kiev, Ukraine, June 6, 2016. © 2017 REUTERS/Valentyn Ogirenko