APPENDIX M Operations Security
OPSEC entails all measures taken by the company team to deny the enemy information about its actions and intentions. It covers a variety of procedures and precautions. This appendix focuses on general security measures; measures taken to ensure information security, signal security, and physical security; and employment of OPs. |
CONTENTS
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SECTION 1 - GENERAL SECURITY MEASURES |
Maneuver units use general security measures to protect against surprise, observation, and infiltration. The following considerations and procedures will assist the company team in executing general security measures:
- If feasible, turn off the circuit breaker for the brake lights. - Dim or cover all sources of light in the turret. Use a passive night observation device to check vehicles for light leaks before operations begin. - Move personnel and/or vehicles only when necessary. - Use headsets or the CVC helmet to monitor the radio; do not use the radio’s external speakers. - Do not slam hatches. - Use short-count procedures to start engines simultaneously. - Use terrain to mask resupply and maintenance areas. - Use hand-and-arm signals and digital communications whenever possible. - Do not allow smoking outdoors at night. - Place vegetation on vehicles to break up their "profile." - Drape camouflage nets over gun tubes and turrets. - Park vehicles in natural concealment, such as shadows. - Cover all headlights and optics whenever possible. - Consider the effects of dust and exhaust smoke when moving. - Minimize track, tire, and foot trails that could be detected from the air or from enemy positions. - Drive vehicles in previously made tracks when possible. - In heavily used areas such as CPs and trains, ensure vehicles travel on existing tracks or roadways. - Disperse vehicles and personnel under foliage or inside structures whenever possible. - Conceal vehicles and personnel behind objects that block the thermal "line of sight" of enemy devices. - Protect vehicles in hide positions against aerial observation by minimizing or eliminating their thermal signatures. |
SECTION 2 - INFORMATION SECURITY |
Information security is the protection of all materials, both classified and unclassified, that may be of intelligence value to the enemy. The following procedures will assist the company team in maintaining information security:
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SECTION 3 - SIGNAL SECURITY |
The discussions of communications and COMSEC in Chapter 2 of this manual outline considerations and procedures for establishing and maintaining effective signal security. |
SECTION 4 - PHYSICAL SECURITY |
Physical security is the protection of materiel and equipment. The following considerations and procedures will help the company team to maintain effective physical security:
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SECTION 5 - OBSERVATION POSTS |
OPs are an especially important element of the company team’s effort to establish and maintain OPSEC. They provide protection when long-range observation from current positions is not possible; this can occur when the team is in a hide position or when close terrain offers concealed avenues of approach to its position. The team can employ any number of OPs, either mounted or dismounted, as the situation dictates. |
Before deploying OPs, the company team commander analyzes the terrain in his sector. He also coordinates with the team’s subordinate leaders and with adjacent units to develop effective procedures for observing the assigned area of responsibility and eliminating gaps in observation between adjacent units. Next, based on requirements for early warning and security, the commander decides which type of OP (mounted and/or dismounted) to employ and selects the best available location. A key consideration is the amount of reaction time the company team will require based on its current REDCON status. After selecting the type(s) of OPs and their locations, the commander should brief the company team OP plan to his subordinate leaders and coordinate the plan with commanders of adjacent units as necessary. To be most effective, OPs should have the following characteristics:
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Mounted OPs are used when the company team, or subordinate elements, have access to hull-down or turret-down positions that afford unobstructed surveillance of mounted avenues of approach in the unit’s sector. This type of OP allows the commander to take advantage of his vehicles’ capabilities: magnified thermal and daylight optics, sophisticated communications, lethal weapon systems, and survivability. A common mounted OP technique, executed at the platoon level, has one vehicle positioned forward to observe an engagement area or obstacle while the remainder of the platoon occupies hide positions. Even when the mounted OP has clear fields of observation, it is advisable to dismount one or two members of the crew to provide close-in local security for the vehicle. The dismounted crewmen occupy positions far enough away that sounds from the vehicle do not prevent them from hearing an approaching enemy. Local security can also be enhanced by employment of infantry, which can conduct patrols and occupy dismounted OPs in accordance with the commander’s OPSEC plan. |
Whenever the company team must halt and occupy vehicle positions from which the terrain impedes observation or early warning of enemy activities, it should employ dismounted OPs to provide local security along dismounted avenues of approach. Dismounted OPs also augment or replace mounted OPs based on requirements in the commander’s OPSEC plan. Platoons will normally emplace dismounted OPs as directed by the commander. Refer to FM 7-7J and FM 17-15 for a discussion of dismounted OPs. |