Built in archive

Unknown Built Weapon Systems

Weapon systems and military equipment with Unknown listed under Built in.

3 weapon systems

Small assault boat, Small motorized assault boat, Aircraft & UAVs

Israel-Hamas WarSmall assault boatSmall motorized assault boatBuilt by: Unknown; commercial small-craft buildersSmall assault boats, usually simple motorized or inflatable coastal craft, were used by Hamas naval commandos during the October 7, 2023 sea infiltration in the Israel-Hamas War. The specific builder was not publicly identified, so this entry treats the system as a generic littoral assault craft used for short-range amphibious insertion under fire.

Chlorine gas cylinders, Improvised chlorine chemical munition, Infantry Weapons

2018 Syria Missile StrikesChlorine gas cylindersImprovised chlorine chemical munitionBuilt by: Unknown industrial cylinder manufacturers; OPCW attributed the Douma cylinders' modification and filling to Syrian military-linked activityChlorine gas cylinders are industrial pressure vessels that become chemical weapons when filled, modified, or delivered to release toxic chlorine intentionally. In the 2018 Syria Missile Strikes archive, the relevant use is the Douma attack: OPCW investigators found that Syrian Arab Air Force helicopters dropped two yellow chlorine-filled cylinders on residential buildings, providing the chemical-weapons trigger cited by the United States, United Kingdom, and France for the 14 April 2018 missile strikes.

ZP-39 submunition, Dual-purpose improved conventional munition submunition, Munitions

Yemen Civil WarZP-39 submunitionDual-purpose improved conventional munition submunitionBuilt by: UnknownThe ZP-39 is an unidentified dual-purpose improved conventional munition submunition associated with ground-fired cluster munitions. In Yemen, Human Rights Watch identified ZP-39 remnants after an April 2015 Baqim incident in Saada governorate, while noting that the producer, country of origin, and delivery system were not publicly known.