text: Acronyms, Abbreviations, and Country Codes
  Bolded entries apply only to the Army. An asterisk (*) marks terms shown in chapter 1.
  RED *radiological exposure device
  RED HORSE *Rapid Engineer Deployable Heavy Operational Repair Squadron
  Engineer
  RESCAP *rescue combat air patrol
  RF radio frequency
  RF CM *radio frequency countermeasures
  RFA request for assistance, *restrictive fire area
  RFF request for forces
  RFI *request for information
  RFL restrictive fire line
  RLD *ready-to-load date
  RM risk management
  ROE *rules of engagement
  ROZ *restricted operations zone
  RP *release point, red phosphorus, *retained personnel
  RPG rocket propelled grenade
  RR *reattack recommendation, *rolling resistance
  RS religious support
  RSO reception, staging, and onward movement
  RSOI reception, staging, onward movement, and integration
  RTL *restricted target list
  RUF rules for the use of force
  —S—
  S&TI *scientific and technical intelligence
  S-1 battalion or brigade personnel staff officer
  S-2 battalion or brigade intelligence staff officer
  S-2X battalion or brigade counterintelligence and human intelligence
  staff officer
  S-3 battalion or brigade operations staff officer
  S-4 battalion or brigade logistics staff officer
  S-5 battalion or brigade plans staff officer
  S-6 battalion or brigade signal staff officer
  S-9 battalion or brigade civil affairs operations staff officer
  SA *security assistance, situational awareness, *staging area
  SAA satellite access authorization, *senior airfield authority
  SACC *supporting arms coordination center
  SADC sector air defense commander
  SALT size, activity, location, time
  SALUTE size, activity, location, unit, time, and equipment
  SAM surface-to-air missile
  SAMS-E standard Army maintenance system-enhanced
  SAP *special access program
  SAR *search and rescue, synthetic aperture radar
  SARDOT *search and rescue point
  SARSS Standard Army Retail Supply System
  SATCOM satellite communications
  SB (SO) (A) sustainment brigade (special operations) (airborne)