Workers assemble constructions during preparations for the Victory Day military parade in Red Square in Moscow, Russia June 6, 2020. REUTERS/Shamil Zhumatov

People are seen by a cenotaph war memorial in Whitley Bay on the 75th Anniversary of D-Day, Whitley Bay, Britain, June 6, 2020. REUTERS/Lee Smith

War memorials are seen in Whitley Bay on the 75th Anniversary of D-Day, Whitley Bay, Britain, June 6, 2020. REUTERS/Lee Smith

War memorials are seen in Whitley Bay on the 75th Anniversary of D-Day, Whitley Bay, Britain, June 6, 2020. REUTERS/Lee Smith

South Korean President Moon Jae-in and his wife Kim Jung-sook attend a Memorial Day ceremony at the national cemetery in Daejeon, South Korea, June 6, 2020.Lee Jin-man/Pool via REUTERS

A man wearing a face mask has his temperature checked upon his arrival for a Memorial Day ceremony at the national cemetery in Daejeon, South Korea, June 6, 2020. Lee Jin-man/Pool via REUTERS

A big screen shows South Korean President Moon Jae-in speaking during a Memorial Day ceremony at the national cemetery in Daejeon, South Korea, June 6, 2020. Lee Jin-man/Pool via REUTERS

South Korean President Moon Jae-in speaks during a Memorial Day ceremony at the national cemetery in Daejeon, South Korea, June 6, 2020. Lee Jin-man/Pool via REUTERS

South Korean President Moon Jae-in speaks during a Memorial Day ceremony at the national cemetery in Daejeon, South Korea, June 6, 2020. Lee Jin-man/Pool via REUTERS

South Korean President Moon Jae-in arrives for a Memorial Day ceremony at the national cemetery in Daejeon, South Korea, June 6, 2020. Lee Jin-man/Pool via REUTERS

A man wearing a mask as a measure to avoid the spread of the coronavirus disease (COVID-19) stands in front of the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

An elderly couple wearing masks as a measure to avoid the spread of the coronavirus disease (COVID-19) looks for the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

An elderly couple wearing masks as a measure to avoid the spread of the coronavirus disease (COVID-19) looks for the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

A man wearing a mask as a measure to avoid the spread of the coronavirus disease (COVID-19) mourns in front of the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

A man mourns in front of the gravestone of a family member who died for the country, as the spread of the coronavirus disease (COVID-19) continues, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

A man wearing a mask as a measure to avoid the spread of the coronavirus disease (COVID-19) mourns in front of the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

A man wearing a mask as a measure to avoid the spread of the coronavirus disease (COVID-19) sits next to the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

A woman wearing a mask as a measure to avoid the spread of the coronavirus disease (COVID-19) wipes the gravestone of a family member who died for the country, on Korean Memorial Day at the National Cemetery in Seoul, South Korea, June 6, 2020. REUTERS/Kim Hong-Ji

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

A far-right supporter gestures as he attends a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

A far-right supporter attends a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters attend a march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters gather before a march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters gather before a march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

A far-right supporter is seen before a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Far-right supporters gather before a torch-lit march to commemorate the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 5, 2020. REUTERS/Bernadett Szabo

Media mogul Jimmy Lai Chee-ying (L), founder of Apple Daily, attends a candlelight vigil to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, after police rejected a mass annual vigil on public health grounds, at Victoria Park, in Hong Kong, China June 4, 2020. Picture taken June 4, 2020. REUTERS/Tyrone Siu

Media mogul Jimmy Lai Chee-ying (C), founder of Apple Daily, attends a candlelight vigil to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, after police rejected a mass annual vigil on public health grounds, at Victoria Park, in Hong Kong, China June 4, 2020. Picture taken June 4, 2020. REUTERS/Tyrone Siu

The historical Chain Bridge over the Danube river is lit in the colors of the Hungarian flag during the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

The historical Chain Bridge over the Danube river is lit in the colors of the Hungarian flag during the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

The historical Chain Bridge over the Danube river is lit in the colors of the Hungarian flag during the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

The historical Chain Bridge over the Danube river is lit in the colors of the Hungarian flag during the 100th anniversary of the Treaty of Trianon in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo TPX IMAGES OF THE DAY

A Hong Kong anti-government protester raises a hand to show support for the five demands at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

People hold pictures near to candles as they gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

A woman wearing a protective face mask holds a candle at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

People hold up their cellphones and gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

Hong Kong anti-government demonstrators gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

Hong Kong anti-government demonstrators gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

A person holds a placard as people gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

A man wearing a protective mask holds a placard at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

People gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

People gather at Liberty Square in Taipei to mark the 31st anniversary of the crackdown of pro-democracy protests at Beijing's Tiananmen Square in 1989, Taiwan, June 4, 2020. REUTERS/Ann Wang

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo

Dancers perform during the 100th anniversary of the Treaty of Trianon at Heroes' Square in Budapest, Hungary, June 4, 2020. REUTERS/Bernadett Szabo