Pentagon says it will seek President Joe Biden's approval by mid-September to require 1.3 million military members to get vaccinated. The move is in anticipation that the Food and Drug Administration will give full regulatory clearance for the Pfizer Inc and BioNTech SE vaccine. Vaccination rates are highest in the Navy, which suffered from a high-profile outbreak last year aboard an aircraft carrier. However, since U.S. troops are generally younger and fitter, relatively few have died as a result of the vaccine.