G20 explainer: everything you need to know about this week's crucial summit

World leaders including Joe Biden, Xi Jinping and Rishi Sunak will attend summit being held during a war in Ukraine and a global inflationary crisis On Tuesday, leaders of the G20 nations - the world's major economies - will gather in Bali, Indonesia, for an annual summit overshadowed by the presence of Russia during its war in Ukraine. Although President Vladimir Putin has pulled out, Russia will be represented by his veteran foreign minister, Sergei Lavrov.