<strong>Explained: <a href="https://www.thenationalnews.com/world/europe/what-is-the-g7-and-why-is-the-2021-summit-in-cornwall-1.1237250">what is the G7 and why is the 2021 summit in Cornwall?</a></strong> The British Royal Air Force's Red Arrows flew in formation and let loose their red, white and blue smoke over Cornwall on Saturday, as G7 leaders relaxed after <a href="https://www.thenationalnews.com/world/europe/g7-seals-build-back-better-for-the-world-pact-to-address-covid-pandemic-1.1239899">signing a 'Build Back Better for the World' pact</a> agreeing to address the economic fallout from the coronavirus pandemic. <strong>Scroll through the gallery</strong> to see highlights from the show. Prior to making their way to the beach for the airshow and barbecue, the world leaders assembled for their latest obligatory photo shoot. The keen-eyed will spot more than seven grinning leaders after UK Prime Minister Boris Johnson welcomed the heads of South Korea, Australia and South Africa, as well as the secretary-general of the United Nations, António Guterres. The British government said the guest nations were invited to take part in the summit as part of Mr Johnson's <a href="https://www.thenationalnews.com/opinion/comment/johnson-defines-global-britain-as-a-tougher-britain-1.1186919">"Global Britain" agenda</a> and that the expanded group can help the G7 "intensify cooperation between the world's democratic and technologically advanced nations".