The Court of Justice of the European Union has ruled that Italy’s compulsory Covid-19 vaccination requirement for military personnel did not breach EU anti-discrimination law, in a judgment clarifying the legal scope of personnel rules for armed forces.

The Court of Justice of the European Union has ruled that Italy’s decision to require military personnel to be vaccinated against Covid-19 as a condition for continuing their professional activity did not constitute unlawful discrimination under EU law.

The judgment, delivered on 18 June in Case C-522/24, Ministero della Difesa, concerned a senior officer in Italy’s Army Engineer Corps who was suspended after refusing to comply with the SARS-CoV-2 vaccination requirement imposed on military personnel.

The officer argued that he had been treated differently from civilian personnel working in the same command, who were not subject to the same vaccination obligation. He also claimed indirect discrimination on the ground of belief, arguing that his refusal to be vaccinated should have been treated as protected under EU equal-treatment law.

The Court rejected those arguments. It held that a difference in treatment between military and civilian personnel was based on professional category, not on a protected ground under EU equal-treatment rules, which establish a general framework for employment and occupation.

The ruling is legally narrower than a general endorsement of vaccine mandates. The Court did not decide whether all compulsory vaccination rules are valid in every setting. It addressed the specific question of whether EU anti-discrimination law prevented Italy from applying a Covid vaccination requirement to military personnel while not imposing the same rule on civilian staff working in a similar environment.

The Court found that professional category is not one of the protected grounds listed in Directive 2000/78. Those grounds include religion or belief, disability, age and sexual orientation. Because the difference between military and civilian personnel was not based on one of those grounds, it fell outside the relevant part of EU anti-discrimination law.

The Court also rejected the argument based on belief. It said that objections to vaccination founded on opinions about public health did not fall within the concept of “belief” for the purposes of the directive. The law protects religious, philosophical and spiritual beliefs, but not every opinion or objection to public policy.

The case arose from Italian legislation adopted during the pandemic. The vaccination requirement was extended to several professional categories considered exposed or operationally relevant, including military personnel. Vaccination was made a condition for continuing professional duties. Refusal could lead to suspension from duties, without salary or other remuneration, although the employment relationship itself was maintained.

The applicant had argued that he was willing to undergo regular swab testing and that this should have been regarded as an equivalent safety measure. The referring court, Italy’s Consiglio di Stato, noted earlier findings by Italy’s Constitutional Court that vaccination was considered appropriate to reduce the spread of the virus and that frequent diagnostic testing could not necessarily be treated as an equivalent alternative.

For armed forces, the judgment is relevant because it confirms that military status may justify different employment obligations, provided the difference does not fall within a protected discrimination ground under EU law. The Court’s reasoning reflects the particular legal position of military personnel, whose duties, deployment requirements and exposure to operational conditions differ from ordinary civilian employment.

The judgment also has implications for future disputes involving military readiness and health requirements. Armed forces regularly apply medical, fitness, vaccination and deployment rules that are stricter than those imposed on civilian personnel. These rules may affect the ability of personnel to serve, deploy or remain in particular roles.

The Court’s decision does not give member states unlimited discretion. National measures affecting military personnel may still be challenged under domestic constitutional law, human rights law, administrative law or other areas of EU law where applicable. But in this case, the Court made clear that the EU equal-treatment directive did not cover the claimed difference between military and civilian categories.

The ruling also limits the use of “belief” as a legal basis for challenging workplace vaccination rules. By distinguishing protected belief from opinions on public health, the Court reduced the scope for anti-discrimination claims based on personal opposition to vaccination. That distinction may matter in future disputes where employees seek to frame objections to health or safety rules as protected convictions.

For defence ministries, the judgment provides legal clarity on one part of the pandemic-era policy framework. It confirms that, under EU anti-discrimination law, a government may impose a compulsory vaccination condition on military personnel without automatically having to apply the same condition to civilian staff working in the same environment.

For service members, the ruling confirms that opposition to such a requirement will not necessarily be treated as protected belief under EU employment-discrimination law. Challenges may still be brought under other legal grounds, but the anti-discrimination route is now more limited.

The case is rooted in Covid-era legislation, but its relevance extends beyond the pandemic. It concerns the wider question of how far armed forces may impose health and readiness obligations on personnel, and how EU law distinguishes military employment from civilian work.

The Court’s answer is that EU anti-discrimination law does not prevent such differentiated treatment where the distinction is based on professional category and where objections are framed as public-health opinions rather than protected beliefs.