Russian President Vladimir Putin receives Bulgarian President Rumen Radev in Sochi

SOCHI, RUSSIA - MAY,22 (RUSSIA OUT) Bulgarian President Rumen Radev arrives to the meeting at Bocharov Ruchey Presidential Summer Residence on May 22, 2018 in Sochi, Russia. President of Bulgaria Rumen Radev is having a one-day visit to Russian Black Sea resort of Sochi. (Photo by Mikhail Svetlov/Getty Images)