Putting aside the fact that military personnel were among the lowest risk for serious covid issues, you don't think there was any reason for concern about the vaccine? Other drug approvals take a decade or more, which allows for some view into possible long-term side effects. That wasn't the case with the Covid vaccine. There's also the reality that the mRNA delivery system had never been used in anything remotely close to the scale as it was being used for the Covid vaccine.
I ask that as someone who got the vaccine and one booster.
Nope, and time has shown that there was no reason for concern about the vaccine. Of course there are side effects with any vaccine or any medical treatment, but the cost-benefit analysis of getting the COVID vaccines into as many arms as possible was sound and saved many, many lives. Military COVID deaths essentially went to zero after the mandate was implemented.