Chapter 2. COUNTERMOBILITY FUNDAMENTALS. This chapter provides a standard classification and a detailed discussion of existing and reinforcing. Full text of “FM Countermobility” Countermobility support is divided into mine warfare and obstacle development, each with an ultimate goal of delaying, . FM Headquarters Department of the Army Washington, DC, 14 March C O U N T E R M O B I L I T Y. he foundation for engineer doctrine in .

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Valid test data does not exist for equipment combinations other than those listed. Knowing the location of land force emplaced obstacles will assist the Air Force in attacking concentrated enemy elements created by obstacle employment.

Nearly all forests, however, have a slowing effect on movement. Prevent duplication of effort by air and land forces. It is not the purpose of this section to examine river crossing operations in their entirety, but to define the role of engineers within the overall effort.

Because no demolition material is earmarked for hasty demolition, it must be taken from the combat load of the pertinent unit. There are many different types of log obstacles that can be constructed using local materials. The plan will normally be issued as an annex counter,obility the division countemrobility order.

Rapid execution of these tasks is essential, since the actual crossing units follow closely behind and depend on suitably prepared crossing points before commencing operations. Denial targets must meet the test of one of the above criteria. Integrating reinforcing obstacles Bypass muEt. It also provides the basis for siting many of the defender’s reinforcing obstacles. Successful commanders fmm need to concentrate forces at the decisive time and place, make maximum use of unit versatility, exercise movement and maneuver, impede the opposing force’s movement and maneuver, and preclude enemy reinforcement of committed units and their resupply.

Other targets may require excessive amounts of conventional explosives and emplacement time, such as countermobiltiy and underground installations, or they may require rapid and counntermobility destruction, such as airfields.


Friendly forces must avoid readily discernible, repetitive patterns. Once the enemy has been stopped, he must decide whether to breach or bypass the obstacle. The problem is to determine whether a particular forest will slow movement slightly, drastically, or stop it altogether.

FM 5-102 Countermobility

Wet weather, trees, unfavorable soil conditions, snow, boulders, and the employment of reinforcing obstacles may make gentle slopes impassable. Soviet commanders rely 5-12 carefully rehearsed tactical formations for control in the attack. Obstacles must not be located too close together so only a single enemy response is required.

Planners should check the current threat capability for breaching before determining what size minefield is most effective. The host nation will then evaluate the request and be responsible for the construction of the obstacle and the demolition storage site if one is required. If the site preparation effort can be denied, the following crossing units will either be unable to perform their function or forced to halt.

Muddy soil further degrades mobility. Petroleum, oils, and lubricants POL system denial includes, in addition to the destruction of bulk POL, the destruction of terminal storage, producing, refining, and dispensing facilities, as well as facilities for transporting bulk POL.

Employment must be closely coordinated with obstacle plans, fires, and the counterrmobility of maneuver. Because of the large quantities of explosives necessary to destroy such large targets, the galleries are constructed to allow the uninhibited movement of personnel carrying munitions to the chambers.

The obstacle value of each condition is evaluated individually in conjunction with trafficability.

FM Countermobility – Chptr 6 Obstacles Other Than Minefields

Snow Snow creates a special cross-country movement problem related to soils. Significance to Friendly Forces The appearance of engineer reconnaissance elements serves as an important intelligence indicator of impending offensive action.

In the threat view, the greater the increase in mobile warfare, the greater the need for passable terrain. Minefields left behind are clearly marked and recorded, and their locations are reported to the Chief of Engineer Services.


Full text of “FM Countermobility”

At dawn on 7 Marcha steady stream of isorganized German conutermobility and stragglers were fleeing 1 cross the bridge. Destroying bridges or tunnels. The reconnaissance and barricade destruction group reconnoiters enemy mineiield and obstacles protecting a river crossing. Scatterable mines are reinforcing obstacles emplaced by various delivery systems such as artillery or aircraft.

Tank ditching can be accomplished under blackout conditions. Timber bridges can be burned, and controlled fires can be used to create obstacles in other ways.

The distance between obstacles will depend on the terrain and the obstacle effort available. Continuous direct fire should cover the ditch and force the enemy to deploy before reaching the ditch. Vehicles can be equipped with deep water fording devices that will enable them to cross water bodies as deep as 5 to 6 meters 17 to 20 feet.

He was only able to reach a duty officer at Army Group B who ssured him that headquarters was not concerned about the situation at Remagen, 1 hours, Captain Bratge was approached by a German officer who lentified himself as Major Scheller. The normal threat method of breaching minefield during an assault or rapid advance is to employ mine plows fitted to the lead tanks.

The actual battle will be intense, fast, and deadly. Restricting the design of obstacles to correspond with the strength of the existing obstacle as previously discussed helps to conserve effort and direct it toward executing obstacles in depth. Reconnaissance is especially important as a source of vegetation countermobi,ity for two reasons.

Log obstacles can and should be used in conjunction with other obstacles to increase their stopping power. The appearance of engineer reconnaissance elements serves as an important intelligence indicator of impending offensive action.