text: Team Operations
  Methods
  4-289. Antiterrorism refers to defensive measures taken against terrorism. Counterterrorism refers to
  offensive actions taken against terrorism.
  Antiterrorism
  4-290. The DOD Dictionary defines this as "defensive measures used to reduce the vulnerability of
  individuals and property to terrorist acts, to include limited response and containment by local military
  forces." Typical antiterrorism actions include—
  • Crime prevention and physical security actions that prevent theft of weapons, munitions,
  identification cards, and other materials.
  • Physical security actions designed to prevent unauthorized access or approach to facilities.
  • Positioning and hardening of facilities.
  • Coordination with local law enforcement.
  • Policies regarding travel, size of convoys, breaking of routines, host nation interaction, and
  off-duty restrictions.
  • Protection from weapons of mass destruction.
  Counterterrorism
  4-291. The DOD Dictionary defines this as "offensive measures taken to prevent, deter, and respond to
  terrorism." Specially organized and trained counterterrorism units usually conduct counterterrorism
  operations. In some cases, conventional forces provide, at most, limited support. LRSU activities that
  support combating terrorism include at a minimum—
  • R&S to confirm terrorist activity.
  • Surveillance of a terrorist safe house.
  • Surveillance of suspected or known terrorists.
  • Surveillance of individuals on the black, white, and gray lists.
  • Force-protection surveillance.
  NONCOMBATANT EVACUATION OPERATIONS
  4-292. Noncombatant evacuation operations (NEO) relocate threatened civilian noncombatants to
  secure areas. Normally, these operations remove US citizens from foreign nations where their lives are in
  danger either from the threat of hostilities or from a natural disaster. In addition to US citizens, relocated
  civilians can include selected host-nation citizens and third-country nationals. NEO has three basic
  environments:
  Permissive—A permissive environment has no apparent physical threat and no host-nation
  opposition. Military assistance is normally limited to agency support. This operation (NEO in a
  permissive environment) is slow and deliberate. It is the least likely environment in which an
  NEO might occur.
  Uncertain—An uncertain environment requires the commander to disseminate the ROE early.
  The host nation may or may not be in control, but cannot ensure safety. An uncertain
  environment increases the need for a reaction force.
  Hostile—A hostile environment might require a large security element and a large reaction force.
  The ROEs must be strictly enforced. The host nation or other threat will probably oppose
  evacuation. The LRSU activities supporting NEO include, at a minimum—
  — R&S of NEO sites.
  — Early warning for host nation and United States forces.