The US Department of Defense (DoD) has issued a mandate requiring members of the military to provide a proof of their vaccination status or be subject to strict safety protocols aimed at curbing the spread of COVID-19, hours after President Joe Biden announced the requirements for all federal workers.

“In accordance with the guidance the President issued today, all military and civilian DoD personnel will be asked to attest to their vaccination status,” Deputy Pentagon Press Secretary Jamal Brown said in a statement late on Thursday.