TOPSHOT - Britain's Prime Minister Boris Johnson (C) gives a thumbs up as he walks past French President Emmanuel Macron (R) and Senegal's President Macky Sall (L) during a working session on 'G7 Partnership with Africa' in Biarritz, south-west France on August 25, 2019, on the second day of the annual G7 Summit attended by the leaders of the world's seven richest democracies, Britain, Canada, France, Germany, Italy, Japan and the United States. (Photo by PHILIPPE WOJAZER / POOL / AFP)