The M109A6 Paladin is a U.S. 155 mm tracked self-propelled howitzer that modernized the M109 family with onboard navigation, automatic fire-control, digital communications, and improved crew protection. The variant is documented in U.S. artillery missions in Iraq and later as a U.S.-supplied NATO-standard system in Ukrainian service, where it was paired with ammunition support vehicles for sustained mobile gun-line operations.
The United States committed 18 155 mm self-propelled howitzers and ammunition support vehicles in its January 6, 2023 Ukraine package; reporting identified them as M109A6 Paladins and documented delivery to Ukraine's 118th Mechanized Brigade.
Role detailsU.S. Army M109A6 Paladins fired combat-support missions in Iraq, including 1st Battalion, 82nd Field Artillery missions from Camp Taji during Operation Iraqi Freedom Rotation 06-08 and Howitzer Battery, 3rd Armored Cavalry Regiment illumination missions near Mosul in 2008.
Role detailsU.S. Army M109A6 Paladin howitzers fired support missions in Iraq during 2014 Operation Inherent Resolve, including June 2016 strikes from Al Taqaddum Air Base and October 2016 fire missions supporting Iraqi Security Forces near Mosul.
U.S. Army M109A6 Paladin howitzers fired artillery missions in Iraq in 2016 during the coalition-supported campaign against the Islamic State, including fire missions from Al Taqaddum Air Base and Qayyarah West in support of Iraqi Security Forces.
The M109A6 upgrade changed the M109 from a conventionally laid self-propelled gun into a more self-contained artillery system able to receive missions, locate itself, and reposition with less outside survey and command-post setup.
| Upgrade area | What changed | Why it mattered |
|---|---|---|
| Fire control | Automatic fire-control equipment and secure digital communications. | Reduced the time between mission receipt and firing while keeping the crew inside the vehicle. |
| Navigation | Onboard navigation and positioning equipment. | Allowed the howitzer to operate with less dependence on external survey before a fire mission. |
| Mobility | Tracked armored movement with shoot-and-scoot employment supported by onboard fire-processing equipment. | Let Paladin units displace after missions and reduce exposure to counterbattery fire. |
| Survivability | Kevlar lining, pressurized crew compartment, NBC protection, and climate control. | Improved crew protection during counterbattery-threat and contaminated-environment operations. |
The M109A6 is the digitized Paladin branch of the broader M109 155 mm self-propelled howitzer family, with the later M109A7 modernization carrying the Paladin line forward.
| Variant | Configuration | Designation notes |
|---|---|---|
 | Parent 155 mm self-propelled howitzer family | The M109A6 Paladin was developed as a major product-improvement and re-engineering effort for the Army's M109 series, adding navigation, automatic fire-control, communications, and protection improvements. |
| M109A7 | Follow-on Paladin modernization | BAE Systems describes the M109A7 as the current Paladin-family howitzer, using major chassis and powertrain commonality with the Bradley Fighting Vehicle while retaining the 155 mm artillery mission. Sources: M109A7 |
The Paladin is a 155 mm howitzer, so its combat value depends on the separate-loading ammunition ecosystem and the fire-control integrations available to the battery.
| Ammunition | Ammunition type | Firing evidence |
|---|---|---|
 | 155 mm artillery ammunition family | The M109A6 fires 155 mm artillery ammunition from the M284 cannon, and the U.S. Ukraine package paired the howitzers with 155 mm artillery rounds. Sources: M109A6 Paladin Self Propelled Howitzer, Fact Sheet on U.S. Security Assistance to Ukraine - January 6, 2023 |
 | 155 mm precision-guided projectile | Raytheon lists the M109 family among artillery systems compatible with Excalibur precision-guided 155 mm projectiles; Paladin compatibility still depends on the relevant fire-control and ammunition integration. Sources: Raytheon Excalibur Projectile |
Paladin batteries normally require armored ammunition handling vehicles to sustain firing positions without exposing crews and ammunition in the open.
| Compatible item | Item type | Compatibility evidence |
|---|---|---|
 | Tracked ammunition support vehicle | The Paladin/FAASV program links the M109A6 howitzer with the field artillery ammunition support vehicle mission, and the 2023 U.S. Ukraine package paired each 155 mm self-propelled howitzer with an ammunition support vehicle. Sources: M109A6 Paladin Self Propelled Howitzer, Fact Sheet on U.S. Security Assistance to Ukraine - January 6, 2023 |
The Paladin/FAASV program began as a product-improvement and re-engineering effort for the M109 family and its ammunition support vehicle.
Sources: M109A6 Paladin Self Propelled Howitzer
The M109A6 fielding program rebuilt and upgraded M109-family howitzers with automatic fire-control, navigation, digital communications, and survivability improvements.
Sources: M109A6 Paladin Self Propelled Howitzer
U.S. Army reporting described the Dragon Fires battery at Camp Taji using M109A6 Paladins during a 2006-2007 Iraq War rotation.
Sources: Stryker Brigade Shows Appreciation for Dragon Fires
Defense imagery documented U.S. soldiers firing an M109A6 Paladin during an 2014 Operation Inherent Resolve fire mission at Al Taqaddum Air Base, Iraq.
Sources: TFTQ Soldiers Conduct Artillery Strikes
The U.S. Department of Defense announced 18 155 mm self-propelled howitzers and 18 ammunition support vehicles for Ukraine.
Sources: Fact Sheet on U.S. Security Assistance to Ukraine - January 6, 2023
Defense reporting identified the U.S.-supplied howitzers as M109A6 Paladins delivered to Ukraine's 118th Mechanized Brigade.
Sources: US Delivers M109A6 155mm Self-Propelled Howitzers to Ukraine's 118th Mechanized Brigade
