Pete Hegseth is giving troops a choice about flu shots, but critics say it could put service members at risk. The defense secretary announced that the military's mandatory flu vaccine requirement is over, "effective immediately." In the same post, Hegseth called the Biden administration "disastrous," accusing it of denying soldiers "simple medical autonomy" during the COVID-19 pandemic, which killed more than a million Americans. The War Department is once again restoring freedom to our Joint Force. We are discarding the mandatory flu vaccine requirement, effective immediately. pic.twitter.