Types of Cluster Bombs
A basic cluster bomb consists of a hollow shell and then two to more than 2,000 submunitions or bomblets contained within it. Some types are dispensers that are designed to be retained by the aircraft after releasing their munitions. The submunitions themselves may be fitted with small parachute retarders or streamers to slow their descent (allowing the aircraft to escape the blast area in low-altitude attacks).
Modern cluster bombs and submunition dispensers are often multiple-purpose weapons, containing mixtures of anti-armor, anti-personnel, and anti-materiel munitions. The submunitions themselves may also be multi-purpose, such as combining a shaped charge, to attack armour, with a fragmenting case, to attack infantry, material, and light vehicles. Modern multipurpose munitions may also have an incendiary effect.
Recently submunition-based weapons have been designed that deploy smart submunitions, using thermal and visual sensors to locate and attack particular targets, usually armored vehicles. Weapons of this type include the US CBU-97 sensor-fuzed weapon, first used in combat during Operation Iraqi Freedom, the 2003 invasion of Iraq. Munitions specifically intended for anti-tank use may be set to self-destruct if they reach the ground without locating a target, theoretically reducing the risk of unintended civilian deaths and injuries. Although smart submunition weapons are many times more expensive than standard cluster bombs, which are cheaper and simpler to manufacture, far fewer smart submunitions are required for defeating dispersed and mobile targets in an area, offsetting this cost. On the basis that they should not cause the indiscriminate area effects or unexploded ordnance risks of cluster munitions, these submunitions are not classified as cluster munitions under the definition of the weapon enshrined in international law by the Convention on Cluster Munitions.
Read more about this topic: Cluster Munition
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