Chlorine 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.
OPCW investigators found that Syrian Arab Air Force Mi-8/17 helicopters dropped two yellow chlorine cylinders on Douma on 7 April 2018; that chemical attack formed the stated trigger for the 14 April 2018 U.S.-led missile strikes.
BTR-60 with AML-90 turretImprovised 8x8 armored fighting vehicle / fire-support conversionThe BTR-60 with AML-90 turret is a Yemeni field conversion that combines a Soviet BTR-60PB armored personnel carrier hull with the 90 mm gun turret from a French Panhard AML-90 armored car. The hybrid traded the base APC's machine-gun turret for a much heavier direct-fire weapon, reflecting Yemen's improvised use of aging armored stocks during the civil war.
CBU-58A/B cluster bombAir-delivered cluster bombThe CBU-58A/B is a U.S.-origin air-delivered cluster bomb built around the SUU-30 dispenser and BLU-63-series anti-personnel submunitions. In the Yemen Civil War, Human Rights Watch documented CBU-58 remnants after Saudi-led coalition strikes in Sanaa, making the weapon part of the conflict's air-launched cluster-munition record.
Drone-dropped fragmentation grenadeImprovised drone-delivered grenadeDrone-dropped fragmentation grenade is a field-adapted tactic that uses commercial quadcopters or similar small UAVs to release grenades onto exposed targets. In the Israel-Hamas War, open-source reporting documents Hamas using the method during the October 7, 2023 attack and Israeli forces using commercial drones to drop grenades in Gaza in 2025, making it a low-cost, short-range improvised strike method rather than a standardized grenade model.
GBU-16 Paveway II1,000-pound laser-guided bombThe GBU-16 Paveway II is a U.S.-origin laser-guided bomb that combines a 1,000-pound Mk 83-class bomb body with a Paveway II guidance kit. In the Yemen Civil War, human-rights and munitions investigators identified likely GBU-16 remnants from Saudi/UAE-led coalition airstrikes, making it part of the conflict's documented air-delivered precision-munition record.
Locally manufactured fourteen-tube rocket launcherImprovised multi-tube rocket launcherThe locally manufactured fourteen-tube rocket launcher is an improvised Hamas launch assembly for salvo firing short-range rockets from concealed positions in Gaza. In the Israel-Hamas War, IDF-released April 2024 imagery documented Hamas launch positions in the Khan Younis humanitarian zone, illustrating the continued use of locally built launch infrastructure rather than standardized state-manufactured rocket artillery vehicles.
Locally manufactured mortar projectileMortar projectileLocally manufactured mortar projectiles are improvised Gaza-made shells intended for mortar launchers. During the Israel-Hamas War, Israeli and AP reporting described central Gaza production sites making mortar shells for Hamas, keeping short-range indirect fire in the conflict's arsenal.