text: Chapter 1
  Daylight Operations
  1-101. Daylight operations allow friendly forces to use their equipment while facilitating control of their
  maneuver. They are psychologically and physically the least stressful on the units. Also, the unit can control
  movement more easily when all subordinates can see one another. Two major disadvantages to daylight
  operations are enemy forces can use their weapon systems more effectively to oppose friendly forces and
  friendly forces neutralize any technical overmatch they have for operations during limited visibility.
  Limited-Visibility Operations
  1-102. There are two general limited-visibility conditions: those in which technology, such as thermal
  sights, can overcome or partially overcome, and those that such technology cannot overcome. The first
  category includes darkness. The second category includes dense battlefield dust, smoke, heavy rain, snow,
  fog, or any other conditions that artificial illumination, image intensification, radar, or other sensors cannot
  partially overcome.
  1-103. The mission variables normally require an operation conducted during limited visibility to be more
  deliberate than in daylight operations. The exception is when an attack occurs as part of the follow up to a
  daylight attack or as part of an exploitation or pursuit. Units planning night attacks consider how limited
  visibility complicates controlling units, Soldiers, and fires. Limited visibility also complicates identifying
  and engaging targets; navigating and moving without detection; locating, treating, and evacuating casualties;
  and locating, bypassing, or breaching obstacles.
  1-104. Trained forces equipped for limited-visibility operations have significant advantages over enemy
  forces that are unprepared for limited-visibility operations. Examples of limited-visibility operations are
  nighttime, weather (blizzards, sandstorms, and heavy rain), and thick vegetation. When enemy forces have
  increased their limited-visibility capabilities, friendly forces must emphasize noise and light discipline during
  limited-visibility operations. For example, Soldiers who leave their laser sights on increase the likelihood of
  revealing their position and losing the element of surprise. Table 1-1 on page 1-19 outlines the advantages
  and disadvantages of conducting limited-visibility attacks.
  1-105. The organization of forces for a limited-visibility operation is the same during daylight operations.
  However, changing an existing task organization under limited-visibility conditions typically requires more
  time and effort than it does during daylight operations.
  1-106. Non-illuminated attacks offer the best chance of gaining surprise. However, units plan for
  illumination for every limited-visibility operation, so that it is readily available if required. Units can choose
  to conduct a non-illuminated operation until subordinate forces make contact with enemy forces. At that
  point, they can direct the illumination of the objective. Enemy units can also choose to employ illumination
  to increase the effectiveness of their efforts. All leaders within an attacking unit must understand the time,
  conditions, and employment authority for illumination.
  1-107. Units plan for limited-visibility operations as they do for daylight operations while emphasizing—
  * Keeping the plan simple.
  * Taking additional time for reconnaissance.
  * Taking advantage of easily identifiable terrain features, such as roads and railroad tracks, when
  establishing control measures.
  * Using intermediate objectives as necessary to control and maintain the correct movement direction
  during the attack.
  * Concealing preparations.
  * Scheduling initial rehearsals during daylight, with the final rehearsal at night.
  * Positioning security elements.