The Group of Seven leaders aim to end their first summit in two years with a punchy set of promises Sunday.
They want to convey that the club of wealthy democracies - Canada, France, Germany, Italy, Japan, the United Kingdom and the United States - is a better friend to poorer nations than authoritarian rivals such as China.
UK Prime Minister Boris Johnson, the summit's host, wanted the three-day meeting to fly the flag for a "Global Britain," his government's initiative to give the midsized country outsized influence when it comes to global problem-solving.
The leaders smiled for the cameras on the beach at cliff-fringed Carbis Bay, a village and resort that became a traffic-clogged fortress for the meeting.
The leaders mingled with Queen Elizabeth II at a royal reception on their first evening, and were served steak and lobster at a beach barbecue on their second.
The re-energised G-7 made ambitious declarations during their meetings about girls' education, preventing future pandemics and using the finance system to fund green growth.
Non-G-7 nations India, South Korea, Australia and South Africa were invited to attend as guests to bolster the group's support for fellow democracies.
The White House said the leaders had also agreed an infrastructure plan, the Build Back Better world plan, to help low and middle-income countries. The move is a response to China's "belt and road" initiative, which has increased Beijing's influence in countries around the world.
White House officials said Biden wants the G-7 leaders to speak in a single voice against the forced labor practices targeting China's Uyghur Muslims and other ethnic minorities. Biden hopes the denunciation will be part of a joint statement Sunday, but some European allies are reluctant to split so forcefully with Beijing.
The summit was also supposed to focus on climate change and to set the stage for the U.N. climate conference being held in November in Scotland.
Here's a look at the G-7 summit in pictures.