What the Military Can Actually Silence You For— And What It Cannot

The central Supreme Court case on military free speech arrived out of the Vietnam War. Dr. Howard Levy, an Army captain and physician stationed at Fort Jackson, South Carolina, stood in public before enlisted men and called Special Forces soldiers “liars and thieves and killers of peasants and murderers of women and children.” He urged Black enlisted men to refuse service in Vietnam, arguing the war discriminated against them. A court-martial convicted him under Articles 88, 133, and 134 of the UCMJ.

Levy challenged his conviction all the way to the Supreme Court, arguing those articles were unconstitutionally vague and that his speech was protected expression. In a 5-3 decision, the Court disagreed.

Parker v. Levy established the foundational doctrine that governs military speech to this day: the military constitutes a “specialized society separate from civilian society,” and the demands of obedience and discipline justify speech restrictions that would be flatly unconstitutional if imposed on civilians. The Court further held that UCMJ Articles 133 and 134—the general articles that critics said were hopelessly vague—were constitutional because military courts had sufficiently narrowed them through precedent.

The ruling immediately rippled outward. Courts subsequently cited Levy to uphold restrictions on distributing political materials on base (Brown v. Glines, 1980), banning civilians from distributing literature at military installations (Greer v. Spock, 1976), and prohibiting a rabbi-officer from wearing a yarmulke in uniform (Goldman v. Weinberger, 1986). Military necessity, the Court consistently held, outweighs individual constitutional interests in the barracks context.

Most service members know about Article 88 (contemptuous words toward the President and other senior officials) and Article 133 (conduct unbecoming an officer). Fewer recognize that the UCMJ builds a much broader architecture of speech restriction.

The Court of Appeals for the Armed Forces (CAAF) functions as the military’s supreme court, and it has developed its own body of precedent that sometimes stretches further than civilians expect—in both directions.

Taken together, CAAF’s jurisprudence establishes that protected military speech requires the absence of a direct, palpable harm to mission readiness, loyalty, discipline, or morale. Speech that would be entirely protected in a civilian coffee shop can become a court-martial offense in a barracks, on a base, or when a service member is identifiable as military—even online.

The tension between military speech law and the First Amendment exploded into national headlines in late 2025 and 2026, driven by a confrontation with Senator Mark Kelly of Arizona—a retired Navy captain, combat veteran, and member of the Senate Armed Services Committee.

In November 2025, Kelly joined five other Democratic members of Congress—all veterans—in a 90-second video reminding active-duty personnel of their legal duty to refuse unlawful orders. The video cited settled military law: the Manual for Courts-Martial itself states that soldiers must obey “lawful orders” and that the presumption of lawfulness “does not apply to a patently illegal order, such as one that directs the commission of a crime.”

Defense Secretary Pete Hegseth responded by issuing a formal letter of censure against Kelly, threatening to reduce his retired rank and initiate proceedings that could affect his pension. President Trump called for Kelly and his co-signers to face arrest and prosecution. Kelly sued.

U.S. District Judge Leon issued a temporary injunction blocking the demotion. He ruled Kelly’s speech constituted protected political expression on matters of public concern—the very core the First Amendment protects. Leon rejected the government’s argument that retirees remain subject to the same speech restrictions as active-duty service members, calling the contention “Horsefeathers.” He noted that retired officers from Alexander Hamilton forward had exercised their rights to criticize military leadership without being stripped of their rank.

In February 2026, the government announced it would no longer pursue the case. The Foundation for Individual Rights and Expression (FIRE) commented that the government should never have launched the investigation in the first place.

The Kelly episode crystallizes a question that military law had left underdeveloped: do the Parker v. Levy restrictions on speech—rooted in the demands of active military discipline and unit cohesion—extend to retirees who no longer occupy a place in the chain of command? The answer, as Judge Leon concluded, appears to be no. But the law here is unsettled, and the threat of prosecution itself carries its own chilling effect—regardless of outcome.

The same framework that limits speech rights in the military has historically suppressed religious expression as well. In Goldman v. Weinberger (1986), the Supreme Court—with Justice Rehnquist again writing for the majority—held that the Air Force could prohibit an Orthodox Jewish rabbi and officer from wearing a yarmulke in uniform. The Court deferred entirely to the military’s judgment that uniformity served discipline, refusing to apply the strict scrutiny standard it would demand in civilian contexts. The dissenters called the opinion unusually harsh, and legal scholars widely criticized it.

Congress responded directly, first passing legislation in 1987 permitting “neat and conservative” religious apparel, and then enacting the Religious Freedom Restoration Act of 1993 (RFRA). RFRA restored the demanding “strict scrutiny” test for federal government burdens on religious practice: the government must demonstrate a compelling interest and pursue it through the least restrictive means available.

The 2014 National Defense Authorization Act made Congress’s intent explicit: RFRA applies to the military. DoD Instruction 1300.17 implements this requirement. Courts now must scrutinize military religious accommodation decisions under RFRA’s demanding standard—not simply defer to commanders’ professional judgment as they did in Goldman.

In practice, RFRA has complicated military discipline in genuine ways. Sikh service members have won grooming accommodations for turbans and beards. Requests for exemptions from training requirements, deployment schedules, and vaccination mandates have proliferated. Courts have held that the Army cannot deny an accommodation simply because it wants to—it must show the denial is the only means of achieving a compelling military interest, not just a preference for uniformity. Where commanders once held sweeping authority, they now face judicial second-guessing.

For service members, RFRA cuts both ways. It creates a genuine avenue to challenge religious discrimination—but it also demands careful strategic navigation. The “substantial burden” threshold, the “compelling interest” analysis, and the “least restrictive means” inquiry each present legal complexity that can determine whether an accommodation request succeeds or fails. Getting the framing wrong can waive rights. Getting it right can preserve a career.

Military free speech law sits at the intersection of three distinct and often contradictory bodies of doctrine: Supreme Court First Amendment law, CAAF’s military-specific jurisprudence, and the internal regulations of each branch. Civilian courts defer to the military. Military courts operate under their own rules. RFRA adds a fourth variable. The Kelly case demonstrated that even settled legal principles—that service members can refuse unlawful orders—can become the basis for career-threatening prosecution in a charged political environment.

Service members facing speech-related investigation or charges need counsel who has actually argued these cases, who reads every CAAF opinion as it drops, and who understands how the institutional dynamics of the military justice system shape outcomes before a word is spoken in a courtroom.

Assigned military defense counsel are often capable lawyers, but most handle only two or three contested courts-martial in a two-year defense billet. They carry heavy caseloads and rotate frequently. They also operate inside the same institutional structure they are supposed to challenge on your behalf. Cave and Freeburg operate outside that structure. They have no promotions to protect, no chain of command to answer to, and no competing institutional loyalties. Their only obligation is to the service member sitting across from them.

Free speech cases in the military move fast and forgive little. Evidence disappears. Witnesses transfer. Command influence shapes the pretrial environment before formal charges ever land. Early involvement—at the investigation stage, before any statement is made, before any waiver occurs—gives counsel the greatest opportunity to shape what comes next.