CARBIS BAY, ENGLAND • Leaders of the Group of Seven wealthy nations staked their claim Sunday to leading the world out of the coronavirus pandemic and crisis, pledging more than 1 billion coronavirus vaccine doses to poorer nations, vowing to help developing countries grow while fighting climate change and backing a minimum tax on multinational firms.

At the group’s first face-to-face meeting in two years, the leaders dangled promises of support for global health, green energy, infrastructure and education — all to demonstrate that international cooperation is back.

During their three-day summit in southwest England, the G-7 leaders wanted 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.

“This isn’t about imposing our values on the rest of the world,” British Prime Minister Boris Johnson told reporters at the end of the seaside summit on the rugged Cornwall coast. “What we as the G-7 need to do is demonstrate the benefits of democracy and freedom and human rights to the rest of the world.”

U.S. President Joe Biden, who was making his first foreign trip as leader, said it was an “extraordinary, collaborative and productive meeting” that showed “America’s back in the business of leading the world alongside nations who share our most deeply held values.”

But health and environmental campaigners were distinctly unimpressed by the details in the leaders’ final communique.

“This G-7 summit will live on in infamy,” said Max Lawson, the head of inequality policy at the international aid group Oxfam. “Faced with the biggest health emergency in a century and a climate catastrophe that is destroying our planet, they have completely failed to meet the challenges of our times.”

Despite Johnson’s call to “vaccinate the world” by the end of 2022, the promise of 1 billion doses for vaccine-hungry countries — coming both directly and through donations to the international COVAX program — falls far short of the 11 billion doses the World Health Organization said is needed to vaccinate at least 70% of the world’s population and truly end the pandemic.

Half of the billion-dose pledge is coming from the United States and 100 million from Britain. Canada said it also would give 100 million doses, and France pledged 60 million.

Former British Prime Minister Gordon Brown said the lack of a more ambitious vaccination plan was “an unforgivable moral failure.”

The G-7 also backed a minimum tax of at least 15% on large multinational companies to stop corporations from using tax havens to avoid taxes, a move championed by the United States.