a court that judges soldiers etc who may have broken military law, or an occasion when this judgment is made. court-martialled court-martialling court-martialed court-martialing to hear and judge someone's case in a military court. Military court for hearing charges brought against members of the armed forces or others within its jurisdiction; also, the legal proceeding of such a court. Most countries today have military codes of justice administered by military courts, often subject to civilian appellate review. Courts-martial are generally convened as ad hoc courts to try one or more cases referred by some high military authority. The convening officer chooses officers, and sometimes enlisted personnel, from his or her command to sit on the court, determine guilt or innocence, and hand down sentences. See also military law