Firefight theory - UNITAF Force Manual (FM)


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Firefight theory



FM/BG-1095 - What is a firefight?

Firefights are direct engagements with the enemy and the foundation of infantry combat. Understanding firefight dynamics allows units to adapt, maintain tempo, and defeat the enemy through coordinated action.

FM/BG-1096 - The four F’s

Firefights progress through four phases:

  • Find: Locate the enemy.
  • Fix: Prevent their movement.
  • Flank: Attack from an unexpected angle.
  • Finish: Assault and destroy.

This cycle underpins nearly all infantry engagements.

FM/BG-1097 - Finding the enemy

Finding the enemy first gives initiative, enabling friendly forces to strike on their terms. Early detection enables surprise, superior positioning, and more effective first fire. Finding the enemy can come from a number of methods: 

  • Point Man: A point man or scout team, ~50m ahead of the formation, helps detect threats early and provides a buffer against ambush. Their survival is vital to preserving initiative. 
  • Reconnaissance: Recon assets (scouts, UAVs, recon aircraft) gather intelligence on enemy forces and terrain, informing tactical decisions and reducing the risk of unexpected contact. 
  • Stealth and Trigger Discipline: Covered movement, good spacing, and terrain use enable stealth. Combined with fire discipline, this allows friendly forces to withhold fire until a coordinated strike is ready. 
  • Security and Awareness: Maintaining 360° situational awareness is critical. Security must be maintained during all movement and halts, especially in the rear and flanks.
FM/BG-1098 - Fixing the enemy

Fixing is achieved by suppressing and limiting enemy movement. Effective fixing requires dominant positions, volume of fire, and ideally, coordination with indirect assets. Suppression is only effective if the enemy believes exposure will result in death. Without sustained, lethal fire, the enemy may manoeuvre or return fire freely.

FM/BG-1099 - Flanking the enemy

Before flanking, confirm:

  • Fireteam is unsuppressed
  • Terrain supports movement
  • Enemy location is known
  • Base-of-fire is stable 

The flanking team moves undetected to attack from a new angle. Simultaneously, the base-of-fire maintains pressure. Flank movements must be rapid, concealed, and decisive.

FM/BG-1100 - Finishing the enemy

Once flanking forces are in position, they assault the enemy while base-of-fire shifts. Speed and violence of action are critical to overwhelming remaining resistance.

FM/BG-1053 - Leadership actions post combat

Establish security immediately

  • Secure the area with 360° coverage.
  • Clear enemy combatants and occupy strong positions.

Conduct status and ACE reports

  • Collect SITREPs and ACE Reports from all elements.
  • Determine remaining combat capability.

Address casualties and medical needs

  • Confirm medics are treating wounded effectively.
  • Avoid clustering around aid stations; establish triage.

Reorganize and redistribute

  • Reassign leadership if casualties occurred.
  • Merge understrength teams as needed.
  • Redistribute key equipment and ammunition.

Prepare for the next objective

  • Once stabilized, determine the next phase of the mission.
  • Rebrief units if needed and resume movement with discipline.
FM/BG-1101 - When to transition to an assault

If flanking fails or is infeasible, a direct assault may be necessary. Pincer movements (simultaneous flank and front assaults) maximize shock and reduce exposure.

FM/BG-1102 - When to transition to a defence

If manoeuvre becomes unfeasible, adopt a defensive posture:

  • Use strong terrain
  • Cover likely approaches
  • Establish overlapping sectors

Transition to defence is not permanent, readiness to counterattack remains key.

FM/BG-1103 - When to disengage

If the enemy cannot be flanked or defeated, disengage under cover of smoke or suppressive fire. Withdraw in bounds to prevent pursuit and reposition for advantage.

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