Profile
- Type
- 155 mm white-phosphorus smoke projectile
- Conflict side
- Israel
- Origin
- United States
- Service note
- Introduced in 1985
Artillery
M825A1 155 mm White-Phosphorus Smoke Projectile
The M825A1 is a U.S. 155 mm white-phosphorus smoke projectile designed to screen and mark; Amnesty International documented Israeli forces fielding M825A1/D528 rounds during the Israel-Hamas War.
- Conflict side
- Israel
- Built in
- United States
Production History
- Built in
- United States
Specifications
- Caliber
- 155 mm
- Weight
- 102.6 lb (46.6 kg)
- Payload
- 116 white-phosphorus-impregnated felt wedges
- Fill
- 12.75 lb (5.78 kg) white phosphorus
- Range
- 22.5 km
- Smoke Screen
- About 10 m high and 125-250 m wide for 5-10 minutes
Conflict Usage
- Israel-Hamas War
- Side: IsraelRole: Smoke screening and obscurant fire
In the Israel-Hamas War, Amnesty International verified M825A1/D528 shells fielded by Israeli forces next to M109 howitzers near Sderot and documented white phosphorus shelling in Gaza and along the Lebanon border.
M825A1 155 mm White-Phosphorus Smoke Projectile Images
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JPEO A&A Portfolio Book 2017Publisher: U.S. Army | Note: Supports the M825A1 system description, 155 mm smoke-screen role, performance characteristics, DODIC D528, and Pine Bluff Arsenal/General Dynamics-Scranton AAP production context. | Accessed: 2026-06-20Army obscurant projectiles recapitalizationPublisher: The United States Army | Note: Supports the M825A1 smoke-screen purpose and Army/Marine Corps inventory context. | Accessed: 2026-06-20ARES M825 WP and M150 HC identificationPublisher: Armament Research Services | Note: Supports the M825A1/M825-series technical description, smoke role, and detailed technical specifications. | Accessed: 2026-06-20Amnesty Israel-Hamas War white phosphorus reportPublisher: Amnesty International | Note: Israel-Hamas War: Amnesty International verified M825A1/D528 shells fielded by Israeli forces next to M109 howitzers near Sderot and documented white phosphorus shelling in Gaza and along the Lebanon border. | Accessed: 2026-06-20Wikimedia Commons White phosphorus in Gaza in 2009Publisher: Wikimedia Commons | Note: Image licensing and provenance page for White phosphorus in Gaza in 2009.jpg; CC BY 3.0 from the Al Jazeera Creative Commons Repository. | Accessed: 2026-06-20Wikimedia Commons Fallujah White PhosphorusPublisher: Wikimedia Commons | Note: Image licensing and provenance page for Fallujah White Phosphorus.jpg; CC BY-SA 4.0 self-published work. | Accessed: 2026-06-20Wikimedia Commons Patzmar160mmPublisher: Wikimedia Commons | Note: Image licensing and provenance page for Patzmar160mm.jpg; public-domain IDF white-phosphorus ammunition box image. | Accessed: 2026-06-20Wikimedia Commons White Phosphorous mortar roundPublisher: Wikimedia Commons | Note: Image licensing and provenance page for White Phosphorous mortar round.jpg; public-domain U.S. Air Force training image. | Accessed: 2026-06-20