Marine Rifle Squad

9.6
9104. Phases of Attacking a Built-Up Area
a. In attacking a built-up area, the plan will normally be executed in three
phases:
(1) Phase I. Phase I is designed to isolate the objective by controlling
avenues of approach into and out of the built-up area. Key terrain outside
the built-up area is secured. From here, supporting arms are
employed to support the maneuver force's entrance into the built-up area
and the step-by-step seizure of objectives; supporting fires also help to
prevent enemy reinforcement of or escape from the area.
(2) Phase II. Phase II consists of an assault to rupture the defenses and
secure a foothold on the perimeter of the built-up area. From here attacks
to clear the area may be launched. An envelopment (assaulting defensive
weaknesses on the flanks or rear of the built-up area) is preferred;
however, a penetration may be required.
(3) Phase fl. Phase III is predominantly a clearing action which consists
of a systematic building-by-building, block-by-block advance
through the built-up area. This phase is characterized by decentralized,
small-unit actions, and requires detailed planning to offset the difficulties
of control.
b. The attack does not stop or slow down between Phases II and III. There
may be actually no distinction between the two.-As each unit secures its
foothold in the near edge of the built-up area, it immediately begins to
displace its reserve and supporting weapons into the foothold area to support
the third phase of the attack.
9105. Organization of the Rifle Squad
The rifle squad will fight as part of the rifle platoon in this type of operation.
The rifle platoon in its assault of a built-up area will normally adopt the vee
formation. The reserve squad will be positioned and displaced as required
to protect the flanks and rear of the attacking squads. It should be prepared
to assume the mission of either attacking squad on order or respond to a
new mission if so ordered. Each of the two attacking squads will be formed
into covering parties and search parties. The squad leader and any supporting
weapons, such as SMAWs, will normally be positioned with the covering
party.