CHAPTER 5: The OPFOR in the Offense


INTRODUCTION.

    This chapter provides you the necessary tactics for the OPFOR to successfully conduct an offense. It does not cover all aspects of the OPFOR’s offensive principles, planning and execution. However, it does provide the critical concepts the OPFOR follows when planning such operations.

5-1 Forms of Tactical Maneuver.

    Maneuver is a basic component of combat. It is an organized movement during combat that puts the OPFOR in a more advantageous position than the BLUFOR. The OPFOR uses maneuver to seize and hold the initiative and defeat the BLUFOR. The most common forms of OPFOR maneuver are frontal, close, deep, and double envelopment.

    a. Frontal Attack. The frontal attack is directed against the BLUFOR’s frontline forces. Its goal is to penetrate BLUFOR defenses along single or multiple axes. Its success depends on superiority of forces and firepower. An OPFOR unit conducting a frontal attack attempts to create openings for subsequent exploitation. The frontal attack, by itself, is the least preferred form of maneuver. Normally, it is used in combination with a close or deep envelopment. A frontal attack may be appropriate when the OPFOR has the element of surprise, and may be used to fix BLUFOR defenses while other OPFOR units maneuver to attack from the flank.

    b. Close Envelopment. A close envelopment is a flanking maneuver that strikes BLUFOR units in their flank or rear at a relatively shallow depth. The goal of the close envelopment is to attack the BLUFOR from the flank, avoiding a frontal attack. Forces conducting the close envelopment and those conducting a simultaneous frontal attack need to coordinate fire support. (See Figure 5-1.)

Figure 5-1. Close envelopment combined with frontal attack.

Figure 5-2. Deep envelopment combined with frontal attack.

    c. Deep Envelopment. A deep envelopment is a flanking maneuver executed at a greater depth. The goal of deep envelopment is either to attack the BLUFOR from the rear or to seize key-blocking positions thereby preventing the BLUFOR's withdrawal and ensuring its destruction. The deep envelopment is conducted in tactical coordination with the forces advancing from the front. (See Figure 5-2.) Forces assigned to conduct a deep envelopment receive additional fire support.

    In an attack against a defending BLUFOR, a battalion or brigade-sized forward detachment could conduct a deep envelopment for a brigade or division; the forward detachment would be inserted through a gap in forward BLUFOR defenses after first-echelon forces in the main attack achieve a penetration. The depth of a deep envelopment for a mechanized infantry or tank battalion can be more than 15 km. A brigade may conduct a deep envelopment to a depth of up to 50 km. That depth can be significantly greater in a meeting battle or in a pursuit of the BLUFOR. The OPFOR may also employ heliborne forces for the deep envelopment.

    d. Double Envelopment. The OPFOR prefers a double envelopment, which can be a combination of two deep envelopments, two close envelopments, or a deep and a close envelopment. It expects to achieve the most success with a deep envelopment of both flanks, encircling the BLUFOR rear. Combining envelopments creates favorable conditions for attacking the BLUFOR's flanks and rear. The OPFOR's goal is to encircle BLUFOR groupings, split them, and then destroy them. Heliborne assault troops can also land simultaneously in the BLUFOR rear, assisting in the accomplishment of a double envelopment. Forces carrying out close, deep, or double envelopments ordinarily maneuver in a march or prebattle formation when BLUFOR resistance is light enough not to require the use of battle formation. The enveloping force can transition from march to prebattle to battle formation as the situation dictates.

5-2 Organizing for combat.

    The OPFOR organizes for combat by assigning units to function as elements of combat formations. The combat formation corresponds to the situation and facilitates mission accomplishment. It should ensure--

    The following paragraphs list several of the key variables involved in OPFOR organization for combat. There is overlap with other chapters, but this information is included to provide better understanding of organizing for combat.

    a. Reconnaissance. Maneuver divisions have an organic reconnaissance and electronic warfare battalion, while each maneuver brigade has an organic reconnaissance company. Mechanized infantry battalions (MIBN) have an organic reconnaissance platoon. The location of the reconnaissance objectives and the BLUFOR disposition determine how far in front of their parent organization these OPFOR reconnaissance assets move. In an attack against a defending BLUFOR, they would typically reconnoiter the BLUFOR whose destruction is the parent organization’s immediate mission; then they would move on toward the depth of the subsequent mission. In the march, their purpose is to provide the maximum warning of the BLUFOR, in terms of time and distance and to establish the strength and disposition. They also identify terrain features that could slow the OPFOR rate of advance or hinder the accomplishment of the parent organization's mission.

    b. Forward Detachment. A forward detachment is a combined arms force based on a reinforced maneuver brigade or battalion. Forward detachments ensure the unhindered advance of the division or brigade. Divisions commonly establish a brigade-sized forward detachment, or more than one battalion-sized forward detachment, to maneuver ahead of the lead brigades of an advancing division. Although any maneuver brigade can be assigned as a forward detachment, the OPFOR prefers to use BTR-equipped units as forward detachments (and advance guards), thus keeping the higher combat power of BMP and tank brigades for the main force. If the situation requires, a battalion or brigade from another unit/formation (e.g., from a second-echelon brigade/division or an adjacent division) may be temporarily attached as a forward detachment.

    In the march, the forward detachment normally moves ahead of or parallel to the march security elements (advanced guard) of the lead brigades but behind the division’s reconnaissance patrols. However, it could also move parallel to the advance guard.

    There is no set distance between the forward detachment and the main body. A brigade-based division forward detachment moves 2 to 4 hours ahead of the parent division’s main body; in European terrain conditions, this may translate to a distance of up to 80 km. A battalion-based division or brigade forward detachment moves 1 to 2 hours ahead of the parent organization’s main body; this translates to 20 to 40 km.

    c. Echelons. The echelonment of combat formations in the offense is based upon the depth and preparedness of BLUFOR defenses, and is intended to build combat power continuously on the line of contact. The OPFOR typically organize forces either in two echelons or in one echelon with a combined arms reserve. In normal terrain, companies and platoons always attack in a single echelon, without a reserve.

    When attacking unprepared or partially prepared BLUFOR defenses, the OPFOR typically attacks in a single echelon with a reserve. Against more fully prepared defenses, the OPFOR is likely to use a two-echelon formation and a small reserve. Within the division, the pattern of echelonment can vary at each level of command. A division might deploy its brigades in two echelons, while some of the brigades might deploy their battalions in one echelon. The OPFOR does not consider a three-echelon combat formation to be normal, but sometimes use it when advancing in the mountains, when maneuver is restricted in an advance along a narrow valley.

    When attacking defenses that are weak, lacking in depth, or not well prepared, divisions, brigades, and battalions normally deploy in a single echelon with a small combined arms reserve. They would also use a single-echelon formation when attacking on a secondary axis. When using a single-echelon formation, the commander must keep a combined arms reserve; thus, he retains the ability to influence the battle. If he commits his reserve, he must create another one immediately. If the BLUFOR has hurriedly assumed shallow defenses, he will not have a well-prepared defense in depth or strong reserves; and under these conditions, a single echelon may be sufficient to defeat him.

    A two-echelon combat formation is typically employed when attacking a defense prepared or at least partially prepared in depth and on the higher commander's main axis. The first echelon normally contains the majority of the combat power. Its mission is to destroy the BLUFOR's forward defenses and achieve the immediate mission of the formation/unit/subunit.

    At the same time, the OPFOR issue missions to first-echelon forces, he assigns the second-echelon force a mission, a route of advance, and a likely line and time for its commitment. During commitment, the second echelon normally passes through gaps or at flanks to avoid passage of lines and intermingling of forces. Specific second-echelon missions can include:

    Once the second echelon is committed, a combined arms reserve from elements of the first echelon is formed if one had not designated previously. The remainder of the first echelon continues its attack to the degree that it is still able.

Figure 5-3. Commitment of second-echelon forces.

    Although the OPFOR pre-plans deployment lines and time for committing the second echelon, he retains flexibility in implementing them, depending on the progress of the battle. It is important to remember that a second echelon is an application of additional force, not reinforcement of the first echelon. However, the second echelon could be a replacement for a first-echelon force that has been successful, but at the cost of its own combat effectiveness. The second echelon's attack may be on an axis different from the one originally planned. (Figure 5-3 illustrates one example of the commitment of second-echelon forces.)

    d. Combined Arms Reserve. Divisions, brigades, and battalions can form a combined arms reserve (usually two levels smaller in size, e.g., battalion has a platoon reserve), but only if attacking in a single echelon. The combined arms reserve is small. It is a contingency force used to meet unanticipated events and to deal with tasks such as exploiting unexpected success, repelling counterattacks, and covering the flanks of the parent organization.

    e. Raiding Detachment. At the tactical level, a raiding detachment is a highly mobile combined-arms unit, usually a reinforced battalion. Reinforced companies and platoons can also conduct raids. The primary mission of a raiding detachment is to destroy or capture important military targets. Such objectives can include an artillery battalion, tactical missile batteries, elements of a reconnaissance-strike complex, a fire support helicopter forward base, a supply base/depot, or a river-crossing site. Its secondary missions can include seizing important terrain and blocking BLUFOR reserves.

    f. Enveloping Detachment. Within maneuver battalions and companies, the OPFOR may use an armored group as a smaller-scale enveloping group. The armored group is a temporary grouping of 4 to 5 tanks, BMPs, BTRs, or any combination of such vehicles. In this role, BMPs or BTRs would deploy without their normally assigned infantry squad on board and fight away from their dismounted troops. The armored group can thus act on an independent axis to attack the BLUFOR flank or establish a blocking force to his rear. It has significant direct-fire capability and serves as a mobile reserve attack force for the battalion or company commander.

5-3 Types of Offensive Action.

    The OPFOR will employ three basic types of tactical offensive actions: attack against a defending enemy, meeting battle, and pursuit.

    a. Attack Against a Defending Enemy. The basic form of offensive combat and the preferred OPFOR method of attacking a defending BLUFOR:

        (1) Assembly Areas.

        (2) Operations Against an BLUFOR Covering Force Area.

Against a weak covering force:

Against a strong covering force:

Figure 5-4. Attack against a defending BLUFOR.

        (3) Attack zones and strike sectors. Figure 5-5 lists average widths of attack zones (frontages) and strike sectors (penetration sectors/sectors of main effort) at the tactical level. The OPFOR's goal is to achieve overwhelming superiority in the strike sector. A minimum of 5:1 is desired but more is better.

 

Div

Bde

Bn

Co

Plt

Zone of Attack (km)

5-25

3-8

2-3

.5-.8

.1-.2

Main Attack Axis (km)

6-10

2-4

1-2

NA

NA

Distance Between Echelons (km)

15-30

5-15

1-3

NA

NA

Figure 5-5. Typical Attack Zones and Strike Sector Widths.

NOTE: These distances are doctrinal and may vary significantly depending upon the situation.

        (4) Force Disposition.

            (a) MID and TD.

Division 1st Echelon

Concentrated to attack on main and supporting axes.

Div. 2nd Echelon or Combined Arms Reserve

Moves by bounds 15-30 km behind the first echelon until committed.

Brigade Artillery Groups

1-4 km from the forward edge.

Divisional Artillery Groups

3-6 km from the forward edge.

Army Artillery Groups

3-8 km from the forward edge.

Army Rocket Artillery Group

4-8 km from the forward edge.

Divisional Antitank Reserves

Between the 1st & 2nd echelons on the main attack axis or on a threatened flank.

Division Main CP

Up to 15 km from the forward edge.

Division Forward CP

Up to 5 km from the forward edge.

Division Rear Area Control Post

Up to 30 km from the forward edge and located near the rear services elements.

Brigade Main CPs

Up to 5 km from the forward edge.

Logistics Units

The divisional medical post, together with repair and evacuation elements, moves behind the first echelon. The rest of the divisional logistical units will be some 5-10 km behind the 2nd echelon.

Figure 5-6.Deployment Depths.

Figure 5-7. MID Attack Against a Partially Prepared Defense (Variant).

Figure 5-8. MID Attack Against a Partially Prepared Defense (Variant).

Figure 5-9. MIBR Attack Against a Partially Prepared Defense (Variant)

MIBN and TBN

Figure 5-10. MIBN Attack Against a Partially Prepared Defense (Variant)

    b. Meeting Battle.

Figure 5-11. Circumstances under which a meeting battle may occur.

        (1) OPFOR battalion in the meeting battle. A mechanized infantry or tank battalion is most likely to become involved in a meeting battle when acting as the advance guard of a brigade. This is also true of a battalion acting independently as a forward detachment of a division or brigade. When performing such a role, a mechanized infantry battalion is normally reinforced with tank, artillery, and engineer troops and possibly with antitank, air defense, or chemical protection elements. A tank battalion would be similarly reinforced, but with mechanized infantry rather than tank or antitank elements. Figure 5-14, illustrates advance guard actions.

        (2) OPFOR company in the meeting battle. OPFOR maneuver companies fight meeting battles and defending enemies in the same manner. A mechanized infantry or tank company normally fights as part of a battalion. However, it can also act independently as a forward security element of an advance guard or a forward detachment. A company in such a role can receive reinforcements from NBC reconnaissance, artillery, and a unit of the other maneuver arm (tank or mechanized infantry).

Phase

Element in March

Basic Task

Actions on Contact

Initial Phase Reconnaissance Patrols and Groups Obtain data on BLUFOR disposition and terrain along main routes of advance

Disengage when possible.

Report and/or continuously monitor the situation.

Bypass BLUFOR, continue to penetrate BLUFOR positions, particularly nuclear-capable and high-precision weapon systems.

In favorable conditions (or out of necessity), may attack advancing units, take prisoners, disorganize/disrupt BLUFOR, and destroy BLUFOR NBC and high-precision weapons and C3I systems.

  Forward Detachment

Seize key terrain to facilitate the advance of the main body.

May conduct raids en route to objective against key targets (NBC and high-precision weapon systems, C3I centers)

Avoids contact as much as possible, moving rapidly to its objective.

If necessary, conducts meeting battles like a battalion acting as an advance guard

  Advance Guard Move along route of main body to ensure uninterrupted advance of main body, overcoming BLUFOR security/reconnaissance forces and obstacles.

Reports BLUFOR contact/disruption.

FSE deploys and attempts to overcome BLUFOR based on information from CRP(s).

If the FSE is not able to overcome the BLUFOR, it assumes a defensive overwatch position to support maneuver of main body of advance guard.

Main body of advance guard attempts a close envelopment or double envelopment to defeat the BLUFOR unless his force is overwhelming in size.

If successful, units reform and resume march or initiate pursuit.

If unsuccessful, units hold positions/block BLUFOR/continue attacking to support the subsequent maneuver and attack of the main body of the parent unit.

Actions of Main Body Main Body Deploy rapidly for the attack and defeat of the BLUFOR, generally from the flanks.

Based on information from forward elements, commander maneuvers his forces and attempts to envelop.

Units march rapidly to assigned sectors and deploy in prebattle/battle formations as needed to assault BLUFOR.

Conclusion Main Body Develop the attack into the depths of the BLUFOR rear.

If BLUFOR withdraws, it initiates pursuit.

If it decisively defeats the BLUFOR, it resumes direction of march and overall mission.

If it does not defeat the BLUFOR, it continues to develop the attack and holds positions aggressively until higher headquarters can conduct its maneuver.

If it is unsuccessful, it may go over to the defense in the course of the offense.

Figure 5-12. Phases of meeting battle.

Figure 5-13. Possible outcomes of advance guard action in meeting battle.

Figure 5-14. Advance Guard Actions

COMBAT RECONNAISSANCE PATROL (CRP) / FORWARD PATROL

Upon contact, actions of the CRP/Forward patrol are:

Build-up of Firepower (CRP/Forward Patrol)

FORWARD SECURITY ELEMENT (FSE)

Actions of the FSE, moving in column behind the CRP(s) by up to 10 kilometers, are:

Build-up of Firepower (FSE)

Time: +20 minutes

Forces now committed:

ADVANCE GUARD MAIN BODY (AGMB)

At the time of initial contact, the advance guard main body is moving in march column 5 to 10 kilometers behind the FSE. The commander:

Build-up of Firepower (Advance Guard)

Time: +60 minutes

Forces now committed:

    c. Pursuit. The OPFOR defines pursuit as a type of offensive conducted against a withdrawing BLUFOR. The goal of a pursuit is to complete the destruction of, or capture the BLUFOR.

(1) The three forms of pursuit are shown in Figure 5-15.

(2)  Characteristics of the Pursuit:

Figure 5-15. Forms of Pursuit.

Figure 5-16. Example of a Pursuit.

Note: The OPFOR are represented by the shaded arrows.

5-4 MISSIONS.

During an attack against a defending enemy, units will be assigned a mission (objective).

    a. Missions contain two elements:

    b. Two Types of Missions:

    c. Mission Depth. (See Figure 5-17) Depends on:

    d. Mission factors.

 

Immediate

Subsequent

OPFOR First Echelon

Destroy/Take Positions of

Complete Destruction of

Destroy/Take Positions of

DIVISION (Day 2-4) Rear of Division Rear of Division Corps
DIVISION (Day 1) Reserve Bde of Division Reserve Bde of Division Rear of Division
BRIGADE Rear of 1st-Echelon Bde Rear of 1st-Echelon Brigade Reserve Bde of Division
BATTALION Rear of 1st-Echelon Bn Rear of 1st-Echelon Bn Rear of 1st-Echelon Bde
COMPANY Rear of 1st-Echelon Co Direction of Advance (Toward Bn Immediate Mission)
PLATOON Rear of 1st-Echelon Plt Direction of Advance (Toward Co Immediate Mission)

Figure 5-17. Mission Depths Against a Partially Prepared Defense.

Figure 5-18. Missions Against a Partially Prepared Defense.

5-5 RECONNAISSANCE IN THE OFFENSE.

    The OPFOR considers reconnaissance the most important element of combat support. All commanders and staffs organize reconnaissance to acquire information about the BLUFOR's weapons of mass destruction; force disposition and intentions; and terrain and weather in the area of impending combat. This information is crucial to the planning process for command and control systems. Reconnaissance can decisively influence the outcome of a battle, operation, or campaign. See Section 1-11 for Reconnaissance Task organization.

    a. Army Group reconnaissance:

    b. Army reconnaissance:

            Missions:

    c. Division reconnaissance:

            Missions:

    d. Special brigade reconnaissance troops carry out reconnaissance, operating from up to 25 to 30 kilometers forward of the OPFOR line of contact. They might operate out to a maximum distance of 50 kilometers.

5-6 FIRE SUPPORT.

    In highly mobile, fluid battles, a significant proportion of the available artillery may be decentralized to lower commanders. With organic artillery and additional assets allocated from higher levels, commanders form army artillery groups (AAGs), army rocket artillery group (ARAG), division artillery groups (DAGs) and brigade artillery groups (BRAGs). Individual maneuver battalions can also receive up to a battalion of artillery in an attached or supporting role.

    a. Phases of Offensive Fire Support.

        (1) Phase I - Fire Support of a Force's Movement Forward.

        (2) Phase II - Fire Preparation.

        (3) Phase III - Fire Support of the Attack.

        (4) Phase IV - Fire Accompaniment.

Figure 5-19. Offensive Phases of Fire Support.

    b. Artillery Norms.

        (1) Density Norms. These figures represent fires massed and not to the positioning of artillery units.

        (2) Ammunition Expenditure Norms.

Target

Required Effect

Rifled Barrel

Mortars

Rocket Artillery

Caliber in Millimeters

76

85

100

122

130

152

203

82

120

160

240

Missile Launcher

Target
Annihilation

800

720

540

300

280

200

70

- -

140

60

510

360

200

Bty (plt) of armored SP arty (mortar)

Target
Neutralization

1000

900

720

450

360

270

120

-

450

220

120

560

400

240

Bty (plt) of unarmored towed arty dug-in (mortar)

Target
Neutralization

540

480

360

240

220

180

100

400

240

160

100

400

320

180

Bty (plt) of unarmored towed arty in open (mortar)

Target
Neutralization

250

220

150

90

80

60

30

180

90

40

20

150

120

60

SAM Bty

Target
Neutralization

250

240

200

150

150

100

60

- - - - -

200

100

Signal & RADAR vans in open

Target
Neutralization

420

360

280

180

180

120

60

350

180

80

40

300

340

120

Dug-in troops & weapons in prepared strongpoint

Neutralization of 1 hectare

480

450

320

200

200

150

60

-

200

100

50

320

240

100

Dug-in troops & weapons in hastily prepared position

Neutralization of 1 hectare

400

350

250

150

150

110

45

300

140

85

45

240

180

80

Troops & weapons in assembly area in open

Neutralization of 1 hectare

50

45

30

20

20

15

5

35

10

8

4

10

8

5

CP in dug-out shelter with overhead cover

Neutralization of 1 hectare

480

450

320

200

200

150

60

-

200

100

50

320

240

100

CP in open or vehicle

Neutralization of 1 hectare

120

100

80

50

50

40

15

-

25

20

10

30

20

15

ATGM or AT gun in open

Target
Neutralization

250

240

180

140

140

100

90

240

140

80

35

- - -

Figure 5-20. Sample Ammunition Expenditure Norms.

Notes:

1. Reduce expenditure by 25% when engaging with observed fire or adjusting from a known point.

2. Increase expenditure by 10% when range to target is greater than 10 km.

3. To achieve expenditure norms for annihilation multiply rounds required for suppression by three.

    c. Types of Offensive Fire.

        (1) Fire Assault

        (2) Controlling Fires.

        (3) Fire Concentration.

        (4) Massed Fires.

        (5) Successive Fire Concentrations.

        (6) Rolling Barrage.

5-7 ANTITANK.

    The OPFOR can employ the antitank (AT) reserve as a blocking force against a BLUFOR counterattack during the offense, and it also can cover threatened areas and open flanks. It can be reinforced with engineer assets, usually in the form of a mobile obstacle detachment (MOD).

    Missions that commanders may assign to an AT reserve include, in the offensive (or meeting engagement)¾

5-8 ENGINEER.

    a. Engineer Reconnaissance Patrol (ERP)

    b. Movement Support Detachment (MSD)

    c. Mobile Obstacle Detachment (MOD)

Figure 5-21. MOD in a Meeting Battle.

    d. Mineclearing

Figure 5-22. Tank Battalion Attacks through a Minefield.

5-9 COMMAND AND CONTROL.

    a. Maneuver Command and Control Posts.

        (1) Division.

        (2) Brigade.

        (3) Battalion.

    b. Tactical Communications.

        (1) Division.

        (2) Brigade and Below.

    c. Procedures.

        (1) Radio silence is normally observed when defending and when in or departing assembly areas.

        (2) In an attack against a defending enemy, radio silence is lifted when the artillery preparation begins.

        (3) In a meeting battle, radio silence if lifted upon contact with the BLUFOR.

        (4) Few secure nets exist below brigade level.

5-10 NBC.

    a. Chemical.

        (1) Available Agents.

        (2) Delivery Means.

        (3) Employment.

    b. Nuclear

        (1) Delivery means.

        (2) Likely targets:

    c. Flame.

        (1) A flamethrower battalion is normally assigned to each army. Little is known about its internal structure or how much equipment it has.

        (2) Equipment Capabilities.

    d. Smoke.

        (1) Equipment Capabilities.

    e. Types of smoke screens.

        (1) Blinding.

        (2) Camouflage.

        (3) Protective.

        (4) Decoy.

        (5) Signaling.

5-11 Air Defense Deployment.

    Priorities in deploying air defense assets are usually to protect command posts, then artillery groupings and first-echelon forces.

Figure 5-23. Air Defense Support for an MIBN Assault.

5-12 CLOSE AIR SUPPORT.

    a. Air Support Missions.

    b. Phases of Air Support.

    c. Key Points.

5-13 RIVER CROSSING OPERATIONS.

    a. Methods.

        (1) Crossing a River: Contact is not expected and an administrative crossing is possible.

        (2) Forcing a River (Assault crossing): Contact with the BLUFOR is expected and an assault crossing will be necessary.

    b. Brigade.

    c. Division:

5-14 AIRBORNE OPERATIONS.

    a. Key Concepts.

    b. Support to the Offense.

    c. Conduct of Airborne Operations.

    d. Once on the ground:

    e. Drop Zone Selection.


Any changes from the 1998 OPFOR Battle Book are depicted in GREEN printing.  Last updated on 01 March, 1999
For any comments, additions, deletions, or modifications for this Battle Book contact
LTC Bill Bryan.

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