Infantry Drills

H-6: Reinforcing Obstacles

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H-6. Reinforcing obstacles are used by both friendly and enemy forces to tie together, anchor, strengthen, and extend existing obstacles. Careful evaluation of the terrain to determine its existing obstructing or canalizing effect is required to achieve maximum use of reinforcing obstacles. Installation time and manpower usually are the two most important factors. The reinforcing obstacles are—

  • Land mines.
  • Constructed obstacles.
  • Demolition obstacles.
  • Improvised obstacles.

Next: H-7: Land Mines

Go Back To: U.S. Army FM 3-21.8: The Infantry Rifle Platoon and Squad