A different vaccine for the military you say?

https://www.wrtv.com/news/coronavirus/200-indiana-national-guardsmen-receive-covid-19-vaccine?_amp=true&__twitter_impression=true

"The vaccines they received are part of a U.S. Department of Defense program, separate from the shipments to hospitals going across the country.

Indiana and New York are the first two states to pilot the DoD program."