The Pentagon is once again forcing flu shots on every military recruit, walking back Defense Secretary Pete Hegseth's April order that made the vaccine voluntary — and proving that in the U.S. military, your body is still government property.

Hegseth announced in late April that the annual flu vaccine would be voluntary for service members, effective immediately, calling the mandate "overly broad and not rational" and citing medical autonomy and religious freedom. It was a rare acknowledgment from a Pentagon official that troops have any say over what goes into their veins. That window lasted less than two months.

All military branches formally requested exemptions to keep requiring flu vaccinations for certain service members by early May, according to a congressional staffer who spoke to CBS News. Those exemptions were granted in early June. Chief Pentagon spokesman Sean Parnell said the exceptions followed a "comprehensive review" and were designed to "maximize operational readiness, lethality, and force generation, while safeguarding at-risk populations."

The timing is convenient. A flu outbreak at Lackland Air Force Base in San Antonio has sickened 275 people over roughly three weeks, according to Democratic Congressman Joaquin Castro, whose district includes part of the base. Lackland processes about 700 new recruits every week in close quarters — communal sleeping, communal showers, constant close contact under high stress and low sleep.

A Pentagon official told the Associated Press the exemption decisions were being finalized earlier in June and that the timing with the Lackland outbreak was "just a coincidence." The process of reinstating the mandate began before the outbreak was publicly acknowledged, CBS News reported.

Maybe. But consider what happened when troops actually had a choice: only 40% of new trainees at Lackland opted to receive the flu shot once it became voluntary, according to a source familiar with the situation. That number tells you everything about what service members think when they aren't coerced.

The advocacy group Families Fighting Flu cheered the reversal. Executive director Michele Slafkosky said in a statement that the military's prior requirement "for decades" had prioritized health and safety, and that it was "unfortunate that more than 200 individuals at Lackland Air Force Base in Texas became ill when that requirement was rescinded."

University of Michigan flu expert Arnold Monto called the outbreak "not unusually concerning" but noted that vaccination is "especially necessary" in group settings.

The military has mandated vaccinations since General Washington ordered smallpox inoculations for the Continental Army. The flu vaccine specifically was first mandated in 1945, lifted in 1949, and reinstated in the 1950s, remaining mandatory until Hegseth's April order. Troops are still required to receive shots for hepatitis B, measles, mumps, and rubella.

Hegseth's instincts on medical autonomy were right. Whether the bureaucracy will ever allow that principle to stand is another question entirely.