A participant holds a Crimean Tatars flag during a rally marking the anniversary of the mass deportation of Crimean Tatars from the region in 1944, in Yevpatoriya, Crimea May 18, 2021. REUTERS/Alexey Pavlishak

A man reacts during a rally marking the anniversary of the mass deportation of Crimean Tatars from the region in 1944, in Yevpatoriya, Crimea May 18, 2021. REUTERS/Alexey Pavlishak

Head of Crimea Sergei Aksyonov attends a ceremony marking the seventh anniversary of Russia's annexation of Crimea in Simferopol, Crimea March 16, 2021. The inscription reads: "Crimean spring". REUTERS/Alexey Pavlishak

A veteran stands next to a monument to the so-called "polite people" or the Russian servicemen, who enhanced security during the Crimean referendum to secede from Ukraine and join Russia, after a ceremony marking the seventh anniversary of Russia's annexation of Crimea, in Simferopol, Crimea March 16, 2021. REUTERS/Alexey Pavlishak

A man poses for a picture at a street installation set to mark the seventh anniversary of Russia's annexation of Crimea, in Simferopol, Crimea March 16, 2021. The inscription reads: "Crimean spring. Seven years at home". REUTERS/Alexey Pavlishak

A pedestrian walks in an underpass painted to look like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created the art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A pedestrian walks in an underpass painted to look like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created the art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A pedestrian is seen in an underpass painted like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created an art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A pedestrian walks in an underpass painted to look like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created the art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

Aeronaut teams take part in the Crimean Sky hot air balloon festival near the White Rock, also known as Aq-Qaya, in Crimea, September 19, 2020. Picture taken September 19, 2020. REUTERS/Alexey Pavlishak

A model presents a creation during a Crimean Fashion Week show near the White Rock, also known as Aq-Qaya, outside Belogorsk, Crimea September 13, 2020. Picture taken September 13, 2020. REUTERS/Alexey Pavlishak TPX IMAGES OF THE DAY

Models present creations during a Crimean Fashion Week show near the White Rock, also known as Aq-Qaya, outside Belogorsk, Crimea September 13, 2020. Picture taken September 13, 2020. REUTERS/Alexey Pavlishak

A man has his body temperature taken, as a preventive measure against the spread of the coronavirus disease (COVID-19), before the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

An enthusiast participates in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

An enthusiast participates in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, as a rainbow is seen during a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

Enthusiasts participate in the historical re-enactment of the Sevastopol Fortress assault, which took place during the Crimean War of 1853-1856, at a military historical festival in Sevastopol, Crimea, September 5, 2020. Picture taken September 5, 2020. REUTERS/Alexey Pavlishak

A model presents a creation during a fashion show at the Crimean Fashion Week on the bed of a drained area of the Sasyk-Sivash lake near the settlement of Pryberezhne (Pribrezhnoye), Crimea August 22, 2020. Picture taken August 22, 2020. REUTERS/Alexey Pavlishak TPX IMAGES OF THE DAY

A model presents a creation during a fashion show at the Crimean Fashion Week on the bed of a drained area of the Sasyk-Sivash lake near the settlement of Pryberezhne (Pribrezhnoye), Crimea August 22, 2020. Picture taken August 22, 2020. REUTERS/Alexey Pavlishak

Crimean Tatars prepare to slaughter sacrificial sheep during the Muslim holiday of Eid al-Adha in the town of Saky, Crimea July 31, 2020. REUTERS/Alexey Pavlishak

Men put a sheep in the back of a vehicle during the Muslim holiday of Eid al-Adha in the town of Saky, Crimea July 31, 2020. REUTERS/Alexey Pavlishak

A man carry a carcass of a sacrificed sheep during the Muslim holiday of Eid al-Adha in the town of Saky, Crimea July 31, 2020. REUTERS/Alexey Pavlishak

A man hangs a carcass of a sacrificed sheep during the Muslim holiday of Eid al-Adha in the town of Saky, Crimea July 31, 2020. REUTERS/Alexey Pavlishak

Crimean Tatars slaughter sheep after attending prayers during the Muslim holiday of Eid al-Adha in the town of Saky, Crimea July 31, 2020. REUTERS/Alexey Pavlishak

Men carry a sheep to a vehicle during the Muslim holiday of Eid al-Adha in the town of Saky, Crimea July 31, 2020. REUTERS/Alexey Pavlishak

Russian businessman Arkady Rotenberg reacts before a ceremony to award constructors of the Crimean Bridge over the Kerch Strait in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian businessman Arkady Rotenberg reacts before a ceremony to award constructors of the Crimean Bridge over the Kerch Strait in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin decorates businessman Arkady Rotenberg with the Hero of Labour medal during a ceremony, awarding constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin poses for a picture with businessman Arkady Rotenberg and other participants of a ceremony, which awards constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin decorates businessman Arkady Rotenberg with the Hero of Labour medal during a ceremony, awarding constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin decorates businessman Arkady Rotenberg with the Hero of Labour medal during a ceremony to award constructors of the Crimean Bridge over the Kerch Strait in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin decorates businessman Arkady Rotenberg with the Hero of Labour medal during a ceremony to award constructors of the Crimean Bridge over the Kerch Strait in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin decorates businessman Arkady Rotenberg with the Hero of Labour medal during a ceremony to award constructors of the Crimean Bridge over the Kerch Strait in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin decorates businessman Arkady Rotenberg with the Hero of Labour medal during a ceremony to award constructors of the Crimean Bridge over the Kerch Strait in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin delivers a speech during a ceremony, which awards constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin delivers a speech during a ceremony, which awards constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin delivers a speech during a ceremony, which awards constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

Russian President Vladimir Putin delivers a speech during a ceremony, which awards constructors of the Crimean Bridge over the Kerch Strait, in Sevastopol, Crimea March 18, 2020. Alexander Nemenov/Pool via REUTERS

A general view shows a newly opened railway bridge, which was constructed to connect the Russian mainland with the Crimean peninsula, in the Kerch Strait, Crimea December 25, 2019. REUTERS/Alla Dmitrieva

Seized Ukrainian naval ships are guarded by Russia's Coast Guard vessels in the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

A seized Ukrainian ship is towed by a Russian Coast Guard vessel out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

A seized Ukrainian ship is towed by a Russian Coast Guard vessel out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

A seized Ukrainian ship is towed by a Russian Coast Guard vessel out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

A seized Ukrainian ship is towed by a Russian Coast Guard vessel out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

Seized Ukrainian naval ships are towed by Russia's Coast Guard vessels out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

Seized Ukrainian naval ships are towed by Russia's Coast Guard vessels out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

Seized Ukrainian naval ships are towed by Russia's Coast Guard vessels out of the port in Kerch, near the bridge connecting the Russian mainland with the Crimean Peninsula, Crimea November 17, 2019. REUTERS/Alla Dmitrieva

A tourist takes pictures while standing on the Ai-Petri peak in the Crimean Mountains outside the Black Sea resort of Yalta, Crimea October 27, 2019. REUTERS/Alexey Pavlishak

A tourist admires the view while standing on the Ai-Petri peak in the Crimean Mountains outside the Black Sea resort of Yalta, Crimea October 27, 2019. REUTERS/Alexey Pavlishak

Crimean Tatars slaughter a sheep while marking the Muslim holiday of Eid al-Adha in the town of Saky, Crimea August 11, 2019. REUTERS/Alexey Pavlishak

Crimean Tatars slaughter a sheep while marking the Muslim holiday of Eid al-Adha in the town of Saky, Crimea August 11, 2019. REUTERS/Alexey Pavlishak

FILE PHOTO: A woman holds a portrait of Russia's President Vladimir Putin during celebrations on the main square of the Crimean city of Simferopol March 21, 2014. Putin signed laws completing Russia's annexation of Crimea on Friday, as investors took fright at a U.S. decision to slap sanctions on his inner circle of money men and security officials. REUTERS/Shamil Zhumatov/File Photo

Britain's Queen Elizabeth II looks at a Victorian illusion technique known as Pepper’s Ghost of a waltz danced at the Crimean Ball of 1856, as part of the exhibition to mark the 200th anniversary of the birth of Queen Victoria for the Summer Opening of Buckingham Palace, in London, Britain, July 17, 2019. Victoria Jones/Pool via REUTERS

Britain's Queen Elizabeth II looks at paintings from the Crimean War period and Queen Victoria distributing medals on Horse Guards Parade, alongside Lucy Peter, assistant curator, during a special exhibition celebrating the 200th anniversary of the birth of Queen Victoria which marks this year's Summer Opening of Buckingham Palace in London, Britain, July 17, 2019. Victoria Jones/Pool via REUTERS