All round defence explained

All-around defense^[1] or perimeter defense^[2] is a type of defensive fighting position intended to give military units the ability to repel attacks from any direction.^[3]

The positioning of the outer defensive fighting positions of a unit, is circular or triangular,^[4] from a bird's-eye view.

One version consists of soldiers forming a wide circle around the soldier in charge (and radioman etc.) with a spacing typically of 3–4 metres between each person (on the circle's circumference).

When a group of soldiers relocate as a part of a defensive operation, a perimeter defense can be temporarily maintained without cover.

See also

• Defensive fighting position
• Infantry tactics
• List of military tactics
• Fortification

Notes and References

1. "fire guard" The term "all-around defense" used in a newspaper in 1944
2. http://www.marines.mil/news/publications/Documents/FM%203-21.8%20%20The%20Infantry%20Rifle%20Platoon%20and%20Squad_5.pdf "8-133. A perimeter defense allows the defending force to orient in all directions."
3. Web site: Archived copy . 2012-04-27 . https://web.archive.org/web/20160304041636/http://www.jdfmil.org/JDFMembers/mil_sym/military_terms.pdf . 2016-03-04 . dead .
4. http://www.marines.mil/news/publications/Documents/FM%203-21.8%20%20The%20Infantry%20Rifle%20Platoon%20and%20Squad_5.pdf "The trace of the platoon is circular or triangular rather than linear"