Infantry Drills

Section III: Forms of the Defense

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3-145. The Infantry platoon usually defends using one of three forms of defense: defense of a linear obstacle, perimeter defense, and reverse slope. The platoon also can defend using a combination of these forms. (Refer to FM 3-90-1 for more information.)

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Go Back To: U.S. Army FM 3-21.8: The Infantry Rifle Platoon and Squad