• Units must provide local security over dead space/blind spots that direct fire weapons cannot cover. Ensure observation posts are annotated on sector sketches to prevent fratricide.
• In urban environments, dead space to a position's front changes continually due to rubble and other damage to structures. In urban terrain, dead space, cover, and concealment can only be identified physically and may change considerably as operations are executed.
• During offensive mission planning, leaders must analyze terrain to identify dead space to remove the enemy's advantage of observation and fields of fire that may favor him. To be successful, the friendly attacking element must neutralize this advantage by identifying dead spaces where the enemy cannot see or engage friendly elements.
• During maneuver dead space should be used for multiple friendly support-by-fire positions that are necessary to support a complex scheme of maneuver which cover the unit’s approach.