https://summit.news/2021/07/05/report-us-army-directs-commands-to-prep-for-mandatory-covid-shots-for-troops/

ALSO

Prepare for mandatory COVID vaccines in September, Army tells commands — https://www.armytimes.com/news/pentagon-congress/2021/07/01/prepare-for-mandatory-covid-vaccines-in-september-army-tells-commands/