Belarussian cadets take part in a wreath laying ceremony at the memorial at Hero Fortress as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2017. REUTERS/Vasily Fedosenko

Russian cadets march at the memorial at Hero Fortress as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2017. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as Nazi troops and Soviet Red Army take part in a re-enactment of a World War II battle at the Hero fortress as they mark the 75th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2016. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as Soviet Red Army soldier and civilian woman from the World War Two period dance as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2017. REUTERS/Vasily Fedosenko

Belarussian soldiers carry portraits of border guards killed during the first days of war, at the memorial at Hero fortress as they mark the 75th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2016. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as World War Two Red Army soldiers march as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2017. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as Soviet Red Army sit in a cafe as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2017. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as Soviet Red Army soldiers and civilian people from the World War Two period march as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2017. REUTERS/Vasily Fedosenko

Belarussian border guards stand guard at the memorial at Hero fortress as they mark the 75th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2016. REUTERS/Vasily Fedosenko

People walk around of two children mannequins dressed as Soviet Red Army as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2017. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as Soviet Red Army take part in a re-enactment of a World War II battle at the Hero Fortress as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2017. REUTERS/Vasily Fedosenko

Belarussian border guards take part in a wreath laying ceremony at the memorial at Hero fortress as they mark the 75th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2016. REUTERS/Vasily Fedosenko

Military enthusiasts dressed as Nazi troops pose for a photo as they took part in a re-enactment of a World War II battle at the Hero Fortress as they mark the 76th anniversary of the Nazi Germany invasion, in Brest, Belarus June 22, 2017. REUTERS/Vasily Fedosenko

A military enthusiast dressed as World War Two Red Army officer sits in a cafe as he marks the 75th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2016. REUTERS/Vasily Fedosenko

A military enthusiast dressed as World War Two Red Army soldier holds his child as he marks the 75th anniversary of the Nazi Germany invasion, in Brest, Belarus June 21, 2016. REUTERS/Vasily Fedosenko