R reinforcing
RA Regular Army
RA rocket assisted
radn radiation
RAM radar-absorbent material
RAP rocket assisted projectile
RC reserve component
rct recruit
rcvr receiver
rd round
rd/min rounds per minute
rdo radio
rdr radar
recon reconnaissance
reg regular
regt regiment
rel release
res reserve
resp responsibility; responsible
RF radio frequency
rfl refuel, refuelling
RH rhesus
RHA rolled homogeneous armor
RISTA reconnaissance, intelligence, surveillance, and target acquisition
rkt rocket
RMP reprogrammable processor
RN Royal Navy
ROTC reserve officer training corps
ROV [битая ссылка] remotely operated vehicle
RP release point
rpm rotations per minute; rounds per minute
rr rear
RRC Regional Readiness Command
RRG Regional Readiness Group
RS radar set
RSO Regional Security Officer
RT radiotelephony
RTT Recapture Tactics Team
RV re-entry vehicle
RW rotary-wing
RWR radar warning receiver
S survivability
S1 (14) personnel officer
S2 (14) intelligence officer
S3 (14) operations and training officer
S4 (14) logistics officer; supply officer
S6 (14) signal officer
SA Secretary of the Army
SA small arms
SAC Strategic Air Command
SAF Secretary of the Air Force
SAG surface action group
SAM surface-to-air missile
SAP semiarmor piercing
SAR search and rescue
sat satellite
SatCom satellite communications
SAW squad automatic weapon
SCATMINE scatterable mine
scd scheduled
sct scout
sct hel scout helicopter
sct plat scout platoon
scty security
SD situation display
SEAD suppression of enemy air defense
sec second
sec section
secd secondary
SECAF Secretary of the Air Force
SECDEF Secretary of Defense
SECNAV Secretary of the Navy
secy secretary
SF Special Forces
SF sustained fire
SFW sensor fused weapon
SG smoke generator
sgt sergeant
SHORAD short-range air defense
shp shaft horse power
sig signal
SigC Signal Corps
SIGCEN, sigcen signal center
SIGINT signals intelligence
SINCGARS single channel ground and airborne radio system
sit situation
SJA staff judge advocate
SLBM submarine-launched ballistic missile
SLCM sea-launched cruise missile
SMDC US Army Space and Missile Defense Command
SMFD secondary multifunction display
smg submachine gun
SN service number
SN secretary of the Navy
snd sound
SOA separate operating agency
SOCOM US Special Operations Command
sol soldier
sonar sound navigation and ranging
SOP standing operating procedure
SOUTHCOM US Southern Command
SP self-propelled
sp special, specialist
SP start point
SPACECOM US Space Command
SPCE survey, planning and coordination element
spd speed
spt support
SQ superquick
sqd squad
sqdn squadron
SRBM short-range ballistic missile
SS spin-stabilized
SSA staff-support agency
SSBN (fleet) ballistic missile submarine (nuclear propulsion)
SSGN guided missile submarine (nuclear propulsion)
SSM surface-to-surface missile
SSN