Plan Unit Defense
SFC Rosario
REFERENCES
• FM 3-4
• FM 7-10
• ARTEP MTP 42-877-30
TASK
 Plan
Unit Defense
 MTP Task 63-2-4010
CONDITIONS

The unit’s defensive area of responsibility has
been assigned by higher HQ Staff element and
defense of the area must be planned. The unit
Commander has conducted a dismounted recon
of the area with the AQP OIC. Selected personnel
have occupied initial security positions. The
layout plan is finalized. Automatic weapons
systems have been position on likely avenues of
approach. The unit;s administrative and
operational areas are establish simultaneously
with it’s defensive set up.

Your performance will be evaluated using
TE&O’s
TASK STANDARD
 Defense plan is completed IAQ the TSOP
and higher HQ guidance and is integrated
into higher HQ defense plan. At MOPP 4,
performance degradation factors increase
unit’s planning
TASK STEPS
and
PERFORMANCE MEASURES
 Commander and leaders perform terrain analysis of unit’s
area or responsibility
 Commander and leaders prepare preliminary base fire plan
 Commander and leaders prepare preliminary mobility and
countermobility plan
 Commander and leaders prepare preliminary air defense
 Commander prepares reaction force plan
 Commander prepares ground early-warning plan
 Commander plans sector defense
 Section/Squad leaders plan sector defense
STEP 1
Commander & Leaders perform terrain
analysis of unit’s area of responsibility
 Maintain situational awareness using analog or digital
communications
 Identify terrain features that provide cover and
concealment
 Identify likely avenues of approach mounted &
dismounted
 Identify dead space
 Identify locations of preplanned indirect fire targets
and TRP Target Reference Points
 Identify restrictive fire zones within vicinity of unit
area of responsibility
STEP 2
CDR’S & LDR’S Prepare Preliminary
Base Fire Plan
 List available weapons systems and element to which they are
assigned
 Calculate each elements personnel asset during normal
operations
 Designated subelement boundaries that cover the unit area of
responsibility based on the normal availability of weapons &
personnel
 List probable engagement areas based on terrain analysis
 Establish coordination channels with adjacent units
 List target areas for each type weapon system in the unit
 List indirect fire and close air support CAS target reference point
 Coordinate fire support coordination measures with higher HQ
staff element using analog and or digital communications
STEP 3
CDR’S & LDRS Prepare Preliminary
Mobility & Countermobility Plan
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List locations of obstacles and types based on
desired engagement areas, dead space and
preplanned indirect fire support using analog or
digital communications
Identify available obstacle assets and resources
for emplacement
Coordinate additional obstacle requirements with
higher HQ staff element using analog and or
digital communications or messenger
STEP 4
CDR’S & LDR’S Prepare
Preliminary Air Defense Plan
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Identify applicable air defense policies,
procedures, and requirements in higher HQ and
unit TSOP
List probable air avenues of approach
List current weapon control status as received
from higher HQ staff element
Identify air defense warning signals
Designate locations for air watch positions
STEP 5
Commander Prepares Reaction
Force Plan
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Lists base cluster reaction force requirements
based on higher HQ TSOP or guidance
Lists internal reaction force requirement based on
unit TSOP and personnel availability
Designates internal reaction force rally point
Lists subelements tasking for external and
internal reaction forces requirements
STEP 6
Commander Prepares Ground
Early-Warning Plan

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Designates location for employment of
Patrol Early Warning System (PEWS)
based on terrain analysis
Designates location(s) for deliberate OPs
and LPs
STEP 7
Commander Plans Sector Defense
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Designates boundaries of subelement based on unit plan
Note: Boundaries should be consistent with deployed weapons
systems and personnel available to man the perimeter
Designates crew-served automatic weapon positions with fields of
fire that cover most likely avenues of approach and afford maximum
cover and concealment
Designates anti-armor weapons positions
Assigns sectors of fire to crew-served weapons where their fires
overlap, integrate and mutually support beyond hand grenade range
Assigns armor kill zones for ant-armor weapons within the element
Assigns grenade launcher positions to cover dead space areas
Designates individual weapon positions where fires overlap and
provide flank security for automatic weapons
Identifies indirect fire CAS target reference points within sector
Identifies locations and types of obstacles & fire Zones within sector
Coordinates integration of interlocking fires with adjacent units L/R
STEP 8
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Section/Squad Leaders Plan Sector
Defense
Identify all primary positions within the section/squad’s sector
Identify locations of obstacles, target reference points (TRP’s), and
restrictive fire zones within the sections/squad’s defensive sector
Select alternate positions for each primary position that covers the
same sector of fire as the primary position (Hasty’s)
Select individual alternate positions base on key weapon alternate
position
Select alternate positions that provide covered and concealed
withdrawal routes
Select supplementary positions that are within 200 meters of primary
positions and are oriented in a different direction from primary
positions
Designate sectors of fire for each supplementary position that
interlock and provide mutual supporting fire
Coordinate integration of interlocking fires with adjacent elements
using analog and or digital communication
Appendix 3 (BSA Layout) to Annex C (Operations Overlay) to 53 SPT BN OPORD 03-09
66
58
LZ
LOG
2/116
Company A
LZ
MED
HHC BDE
153 ENG
Company C
HHC SPT
TM HVY
2/124
Company B
1/124
3/124
57
Appendix 4 (BSA Traffic Pattern) to Annex C (Operations Overlay) to 53 SPT BN OPORD 03-09
66
58
LZ
LOG
2/116
Company A
LZ
MED
HHC BDE
153 ENG
Company C
HHC SPT
TM HVY
2/124
Company B
1/124
3/124
57
Appendix 5 (ISB Layout) to ANNEX C (Operations) to 53 SPT BN OPORD 03-09
A/Q Party
Tenant
Field Trains
Support Battalion Units
C-5-1
QUESTIONS