The US military is expected to announce the new policy this Friday, The New York Times has found.
The updated rules would mean around 1.3 million US military personnel will need to be jabbed.
Experts are hopeful that the new rules will increase vaccinations in the country when people see troops getting the jab.
“When people see that these guys got the vaccine and nothing happened to them, that could be decisive,” Dr. Ezekiel J. Emanuel, a University of Pennsylvania bioethicist and Biden transition adviser, told the Times.
“People admire our military. They can serve as a positive example.”