President Joe Biden is set to announce on Wednesday plans to donate 500 million coronavirus vaccine doses to the world in an effort to see 70% of the global population vaccinated by September 2022.

The United States has thus far administered 160 million doses to impoverished countries with vaccination rates far below the standard of wealthier countries, with over 400 million on the way. Biden reportedly has plans to announce at a White House COVID-19 summit on Wednesday that the U.S. is ordering 500 million additional doses designated for donation from Pfizer.