Defending a Position: Last Resort
Tactics for last-resort defense of a fixed position including site assessment, barriers, communication, and withdrawal planning.
Step-by-Step Guide
Assess Your Position and Surrounding Terrain
Walk the complete perimeter of your position and note all potential entry points: doors, windows, weak walls, roof access, and underground access. Identify natural terrain advantages within 100 meters (exit sightlines, high ground, obstacles). Map the building layout on paper, marking primary and secondary exit routes. Establish a 360-degree awareness of approaches: measure distances to roads, determine which directions provide cover/concealment to approaching threats. Position yourself where you have the longest visual lead time before any entry attempt.
Never position defenders in corners with no exit—ensure every position has a planned withdrawal route within 3 seconds.
Establish Clear Fields of Fire
Fields of fire are unobstructed lines of sight and shooting lanes. From each defensive position, clear vegetation and obstacles up to 30 meters to maximize visibility. Position defenders 8-12 meters apart if multiple people defend, ensuring overlapping fields of fire (no blind spots between positions). Mark internal "no-fire zones" to prevent crossfire accidents between defenders. Designate clear sectors of responsibility: for example, Defender A covers 0°-120°, Defender B covers 120°-240°, Defender C covers 240°-360° (using compass bearings or landmarks as reference points).
Inadequate spacing or overlapping sectors causes friendly-fire casualties—brief all defenders explicitly on their zones.
Harden Primary Entry Points
Reinforce doors by barricading with furniture, stacking heavy items against them (refrigerator, mattresses, bookshelves), or wedging a length of wood into door handles. For windows, install interior bars, boarding, or shutter materials; position defenders 2 meters away from glass (broken glass fragments travel 6+ meters). Block unused entries completely: seal secondary doors with sheet metal, wood planks, or dense material. Apply locks to 2-3 entry points and establish a secure "innermost" room as final fallback position. Test barricades: confirm they resist 2-3 hard kicks without collapsing.
Barricades must not trap you—all defensive positions require escape routes without removing barricades.
Create Improvised External Barriers
Obstacles slow attackers and expose them to defender observation. Place barriers 15-20 meters outside the perimeter: stacked vehicles, sandbag walls (sand-filled containers 2 meters high), razor wire or sharp objects in clear patterns, dug ditches 1-1.5 meters deep, or natural obstacles (lumber, rocks, water-filled containers). Ensure barriers don't provide cover to attackers—avoid placing anything an attacker can crouch behind while approaching. Mark your own barriers internally so defenders don't become disoriented. Barriers are psychological and time-delaying tools, not absolute defenses.
Do not trap yourself inside barriers—maintain at least two separate exit routes that bypass external obstacles.
Establish Communication Systems Among Defenders
If defending with multiple people, agree on communication methods that don't require electricity: hand signals (predetermined gestures for threat direction, withdrawal, all-clear), verbal codes (specific words meaning specific actions), or simple whistles (one whistle = all-clear, two = threat approaching). Designate one person as the communication hub who can hear all positions. Brief every defender on signals before position defense begins—confusion kills under stress. Establish a "code word" that means immediate withdrawal for everyone (e.g., "retreat now"), and ensure every defender knows the rally point (the exit location where you regroup).
Radio communication is unreliable during stress; practice hand signals daily if expecting prolonged defense.
Prepare for Psychological Stress and Decision-Making
Defending a position triggers extreme stress: adrenaline, time distortion, tunnel vision, and auditory exclusion (not hearing sounds). Pre-plan responses before stress occurs: scripts for what to do if you're wounded (keep moving toward exit), if you lose sight of other defenders (maintain own defensive sector), if barriers fail (fall back to secondary position). Breathe deliberately (4-second inhale, 6-second exhale) every 30 seconds to manage adrenaline. Assign clear roles: shooter, spotter, casualty-handler, and communicator—knowing your role reduces decision-making under stress. Practice positions at least 3 times before an actual threat.
Untrained defenders make chaotic decisions that endanger everyone—brief your group thoroughly and appoint one person as final decision authority.
Plan and Practice Withdrawal Routes
Mark two complete exit routes that bypass all barricades: primary route is fastest (typically a back exit), secondary route provides an alternate path if the primary is blocked. Measure distance and timing: defenders should be able to exit the position in under 60 seconds. Identify a rally point 200+ meters from the position where remaining defenders meet and regroup. Practice withdrawal in low light and while moving backward (defending until others exit). Agree on a signal that triggers withdrawal (specific phrase, alarm sound, or code word). Brief all defenders on routes and rally point until they can execute from memory.
Defenders who don't know exit routes become trapped—practice exits weekly if a sustained threat exists.
Pre-Position Resources and Contingency Supplies
Stage critical supplies at the position: water (3-5 liters per person), basic medical supplies (tourniquets, bandages, antibiotics), communication devices with backup power (batteries, hand-crank chargers), and defensive tools (flashlights with extra batteries, mirrors for signaling, fire extinguishers for smoke). Store these at each defensive position and near the rally point. Establish a minimum resources threshold: if supplies drop below 48 hours of water or critical tools become unusable, begin planned withdrawal. Mark storage locations so all defenders know where to grab supplies during evacuation. Rotate supplies monthly to ensure water freshness and battery charge.
Defenders who run out of water or light within hours lose discipline and decision-making ability—supply adequately before position defense begins.
📚 Sources & References (2)
Combat Infantry Field Manual FM 3-21.8
U.S. Department of Defense
Defensive Tactics for Protective Services
American Society for Industrial Security