Performers rally around the Red Flag during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter TPX IMAGES OF THE DAY 

Performers in military uniforms take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Spectators attend a performance commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter TPX IMAGES OF THE DAY 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Fireworks explode during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Spectators attend a performance commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Chinese President Xi Jinping waves to spectators after a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Fireworks explode during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

A screen shows former Chinese leader Hu Jintao during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

A screen shows former Chinese leader Jiang Zemin during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers dressed in historic Red Army uniforms take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers in military uniforms wear face masks as they take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers wear face masks as they take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers in military uniforms take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers wear face masks as they take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers in military uniforms take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Performers take part in a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Armoured vehicles roll across the stage during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter 

Armoured vehicles roll across the stage during a show commemorating the 100th anniversary of the founding of the Communist Party of China at the National Stadium in Beijing, China June 28, 2021. REUTERS/Thomas Peter