airplane. Due to a lot of explosives, their poor accuracy and indiscriminate use in populated civilian areas, the resulting detonations have been devastating. Critics have characterized them as weapons of terror and illegal under international conventions. Barrel bombs are cheap to produce, potentially costing as little as $200 to $300 (NBC News). They can be used with any type of aircraft since it's set off with a fuse. The explosive payload can be as simple as fertilizer
NATO’s Charter and of all principles of international law. NATO used military weapons and tactics that run counter to the demands of decency and the nature of a moral people. Cluster bombs are outright illegal. Geneva Convention has concluded the use of cluster bombs and anti-tank and anti-personnel mines as illegal munitions.
human body, poison and poisoned weapons, chemical weapons, biological weapons; weapons that injure by fragments which, in the human body, escape detection by X-rays; incendiary weapons; blinding laser weapons; Explosive Remnants of War and Cluster Munitions. Not mentioned are nuclear ordinances, which would be covered under proportionality and indiscriminate use. The International Committee of Red Cross contains a listing of the rules concerning IHL; here is a partial reading governing armed conflict