Military affairs

Radar Interference	Radio broadcasting	Radio network	Radius of action	Rangefinder
Rank	Rank	Rear Guard	Reconnaissance	Reconnaissance (RECCE)
Reconnaissance aircraft	Reconnaissance vehicle	Redeployment	Regiment	Reinforcement
Respirator	Restricted fire area	Retreat	Rifle	Rocket
Runway	Runway	Salvo	Saturation fire	Second in Command (2IC)
Section (Sec)/Group	Set up a fire position	Shooting	Shot	Sight
Signal corps	Signal corps	Signal corps	Signaller	Signaller
Signals	Signals Intelligence (SIGINT)	Sniper	Squad	Squad leader
Squadron	Strategic communication	Strategy	Stretcher	Strong Point
Sub-lieutenant	Sub-subunit	Tactics	Tank commander	Task