Military affairs

Bullet	Cadet	Call Sign (C/S)	Camouflage	Cannon
Cannon	Captain	Cargo	Cavity	Checkpoint
Checkpoint/point de reference	Chemical decontamination	Chemical defense	Chemical environment	Chemical warfare
Chemical weapon	Chief of staff	Civil environment	Civil-Military Co-operation	Civil–military relations
Close-quarters combat (CQC)	Colonel	Column Formation	Combat aircraft	Combat Alert Duty
Combat day of supply	Combat day of supply	Combat Operations	Combat order	Combat Zone/Area of Operations
Combatant	Command	Command and control	Command center	Command post
Commander	Commander in Chief (CinC)	Company commander	Compatibility	Compatibility
Compressive deformation	Compressive stress	Confinement	Constant	Containment of a Conflict
Contingent	Corps	Counterintelligence	Cratering charge	Crawler