military offense; military crime
Refers to a criminal act committed by or against military personnel, or a violation of military law.
He was court-martialed for a military offense.
Espionage is considered a serious military crime.
戦争犯罪 refers to war crimes under international law, whereas 軍事犯 is a broader term for any military offense under national military law.
Compound of 軍事 (military affairs) and 犯 (crime, offense). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.