Editing Ambush (section)

====Command posts====
When deploying into an ambush site, the NVA first occupied several observation posts, placed to detect the enemy as early as possible and to report on the formation it was using, its strength and firepower, as well as to provide early warning to the unit commander. Usually, one main OP and numerous secondary OPs were established. Runners and radios were used to communicate between the OPs and the main command post. The OPs were located so that enemy movement into the ambush could be observed. They would remain in position throughout the ambush to report routes of reinforcement and withdrawal by the enemy, as well as his manoeuvre options. Frequently the OPs were reinforced to squad size and served as flank security. The command post was situated in a central location, frequently on terrain which afforded it a vantage point overlooking the ambush site.