Indonesia's President Joko Widodo has urged richer countries to share their vaccines with poorer ones, in an exclusive interview with the BBC.
Mr Widodo said it "shouldn't be just a few countries that get all the vaccines, and some other countries get only a little".
Indonesia was one of the countries hardest hit by the Covid pandemic.
President Jokowi - as he is popularly known - also made the case for why there should be more vaccine equity so that developing and poorer countries aren't left behind in this pandemic.
"Everyone has helped, but in my opinion it's not enough," he said, in a virtual interview from the Indonesian presidential palace in Jakarta.
"In this time of crisis, advanced countries need to do more in helping poor countries get vaccines, so that we can overcome this pandemic together."
Mr Widodo's comments come as Indonesia attempts to recover from the ravages of the pandemic. At its peak, the country officially recorded more than 50,000 cases a day, but the real numbers may have been higher. Nearly 150,000 people have died, according to government data.
The International Federation of Red Cross and Red Crescent Societies said that the country was "teetering on the edge of a Covid-19 catastrophe".
But Mr Widodo's administration initially downplayed the disease. His former health minister Terawan Agus Putranto famously said the country would be spared from the virus, because of "all the prayers."
In the interview, he acknowledged the mistakes his administration made in managing the pandemic, saying that it was down to the lack of healthcare infrastructure in the country.
"Our hospitals, our facilities were full and could not handle the load," he said, "and that led to a lot of deaths."
The COVID situation has improved since then, with both deaths and case numbers falling, according to government data.
The vaccination drive has also picked up. According to the latest data from the World Bank, Indonesia has given more than 100 million doses of vaccines in the country, with almost 30% of the population fully vaccinated - no easy feat in a huge archipelago.
But while urban areas like Jakarta are now seeing high levels of vaccination rates, rural areas are harder to get to.
"The difference between facilities is huge [between rural and urban areas], this is what we need to reform," Mr Widodo said. "For example there is no ICU in some hospitals, we need to fix that and buy the equipment and get these facilities ready so that we can make it better."
But critics say that it was not just a lack of investment in healthcare that was the problem - it was a lack of preparedness on the part of the government that led to hundreds of thousands dying when they could have been saved.
Among them healthcare workers, who had been inoculated using the Chinese Sinovac vaccine - what Indonesia first used in its attempts to vaccinate its population.
Authorities later added other vaccines into the mix and have been able to procure more supplies. But the delay in getting vaccines to the vast population has cost the country dearly.
Which is why Mr Widodo is pushing for developing countries to be allowed to house manufacturing facilities for vaccines - a proposal he is taking with him to the G20 meeting where he will meet with his global peers.
Earlier this year, leaked documents seen by the BBC showed that rich countries have attempted to block the vaccine manufacturing capabilities of poorer nations, citing patent protection and funding in new research for future vaccines.