7 - 11 used in close terrain that restricts the enemy's ability to maneuver against the platoon, or in open terrain provided a means of keeping the enemy in the kill zone can be effected. • L Shaped. In an L shaped ambush, the assault element forms the long leg parallel to the enemy's direction of movement along the kill zone. The support element forms the short leg at one end of and at right angles to the assault element. This provides both flanking (long leg) and enfilading fires (short leg) against the enemy. The L shaped ambush can be used at a sharp bend in a trail, road, or stream. It should not be used where the short leg would have to cross a straight road or trail. Figure 7-4. AMBUSH FORMATIONS 7-15 HASTY AMBUSH. The platoon moves quickly to concealed positions. The ambush is not initiated until the majority of the enemy is in the kill zone. The unit does not become decisively engaged. The platoon surprises the enemy. The patrol captures, kills, or forces the withdrawal of the entire enemy within the kill zone. On order, the patrol withdraws all personnel and equipment in the kill zone from observation and direct fire. The unit does not become decisively engaged by follow on elements. The platoon continues follow on operations. Actions on the objective follow (Figure 7-5). a. Using visual signals, any Ranger alerts the unit that an enemy force is in sight. The Ranger continues to monitor the location and activities of the enemy force until his team or squad leader relieves him, and gives the enemy location and direction of movement. b. The platoon or squad halts and remains motionless. • The PL gives the signal to conduct a hasty ambush, taking care not to alert the enemy of the patrol’s presence. • The leader determines the best nearby location for a hasty ambush. He uses arm and hand signals to direct the unit members to covered and concealed positions. c. The leader designates the location and extent of the kill zone. d. Teams and squads move silently to covered and concealed positions, ensuring positions are undetected and have good observation and fields of fire into the kill zone.