Russian Sukhoi Su-25 Frogfoot ground-attack planes release smoke in the colours of the Russian flag during a rehearsal for the Victory Day parade in Moscow, Russia June 20, 2020. The military parade marking the 75th anniversary of the victory over Nazi Germany in World War Two was planned for May 9 and postponed due to the outbreak of the coronavirus disease (COVID-19). REUTERS/Maxim Shemetov