A formation of the Royal Air Force (RAF) Red Arrows and its French counterpart team La Patrouille de France flies above London, Britain, on June 18, 2020. British Prime Minister Boris Johnson and French President Emmanuel Macron held talks Thursday at 10 Downing Street, the first meeting between heads of state in Britain since the COVID-19 pandemic started. A flypast was performed afterwards above London by the Royal Air Force (RAF) Red Arrows and its French counterpart team, La Patrouille de France. (Photo by Ray Tang/Xinhua)

A formation of the Royal Air Force (RAF) Red Arrows and its French counterpart team La Patrouille de France flies above London, Britain, on June 18, 2020. British Prime Minister Boris Johnson and French President Emmanuel Macron held talks Thursday at 10 Downing Street, the first meeting between heads of state in Britain since the COVID-19 pandemic started. A flypast was performed afterwards above London by the Royal Air Force (RAF) Red Arrows and its French counterpart team, La Patrouille de France. (Photo by Ray Tang/Xinhua)

A formation of the Royal Air Force (RAF) Red Arrows and its French counterpart team La Patrouille de France flies above London, Britain, on June 18, 2020. British Prime Minister Boris Johnson and French President Emmanuel Macron held talks Thursday at 10 Downing Street, the first meeting between heads of state in Britain since the COVID-19 pandemic started. A flypast was performed afterwards above London by the Royal Air Force (RAF) Red Arrows and its French counterpart team, La Patrouille de France. (Photo by Ray Tang/Xinhua)