CAESAR self-propelled howitzer

GIAT Industries / Nexter

Company type	State-owned defense company (formerly)
Industry	Defense
Predecessor	GIAT Industries
Founded	1990s
Headquarters	Bourges , France
Products	CAESAR self-propelled artillery system
Owner	French government (historically)
Parent	KNDS France (Nexter)

Camion Équipé d'un Système d'Artillerie (abbreviated as CAESAR, meaning "Truck equipped with an artillery system") is a French-manufactured 155 mm, 52-caliber self-propelled artillery piece designed to fire NATO-standard 39/52 caliber rounds. This system is installed on either a 6x6 or 8x8 truck platform and incorporates an independent weapons network featuring inertial navigation alongside ballistic computation capabilities. These technologies allow it to deliver precise fire at ranges exceeding with Extended Range Full Bore (ERFB) rounds equipped with base bleed, and beyond when utilizing rocket-assisted or precision-guided munitions.

Originally developed by GIAT Industries—now operating as KNDS France—the CAESAR has found international markets. Within the French Army, the system is mounted on a 6x6 Renault Sherpa 5 chassis, whereas export versions frequently utilize either a 6x6 Unimog U2450L or an 8x8 Tatra 817 chassis.

In February 2022, Nexter was awarded a contract to advance the CAESAR platform into its next iteration, known commercially as the CAESAR Mark II or CAESAR NG. The French military intends to acquire 109 units of this upgraded variant between the years 2026 and 2030.

Development

During the early 1990s, the French Army operated two artillery systems produced by the state-owned GIAT: the AuF1 tracked self-propelled howitzer, which was approaching the end of its production cycle, and the TRF1 towed howitzer, which had been delivered only in limited quantities. Facing a lack of new orders, GIAT confronted the potential closure of its artillery division, risking the loss of critical industrial expertise. Without financial backing from the French Ministry of Defence for new designs, GIAT independently financed the creation of a new 155 mm artillery system targeting export customers.

The design adhered to evolving NATO standards that mandated a 52-caliber barrel to enhance both range and accuracy compared to older 39-caliber weapons. To ensure strategic mobility, it was required that the system be transportable by a C-130 aircraft along with its crew and ammunition. Using the TRF1 howitzer and Renault TRM 10000 towing vehicle as references, developers chose to mount the gun directly onto a truck bed to reduce expenses. After engineering a subframe combined with a recoil-damping platform, they adapted it to fit onto a Unimog U 2450 truck chassis. Collaborating with Lohr Industrie (currently Soframe), the official Unimog importer, GIAT completed the initial prototype within twelve months and presented it at Eurosatory in June 1994.

A second pre-production unit was subjected to trials with both the French Army in 1998 and the Malaysian Army in 1999. Encouraged by favorable outcomes, France’s Direction Générale de l'Armement (DGA) commissioned five additional prototypes in 2000 for extended evaluation. Delivered by mid-2003, these units contributed to formulating operational doctrine for forthcoming CAESAR deployments. Persuaded by these results, the French Army opted to adopt CAESAR rather than upgrading its AuF1 fleet. Consequently, in December 2004, DGA awarded GIAT a €300 million contract encompassing production of 72 CAESAR systems, modernization of existing vehicles, initial ammunition provisions, and maintenance coverage for five years. Production was transitioned to use a dedicated Sherpa 5 chassis developed by Renault Trucks Defense (RTD), replacing the earlier Unimog-Soframe foundation.

By 2006, GIAT—rebranded as Nexter—secured initial export contracts with both the Royal Thai Army (utilizing RTD chassis) and Saudi Arabian National Guard (employing Unimog-Soframe chassis). Prior to completing these orders, France deployed eight CAESAR units to Afghanistan in 2009.

Under normal circumstances, Nexter produced approximately ten CAESAR units per year during peacetime. However, following Russia’s invasion of Ukraine in 2022, demand surged significantly; by early 2023 Nexter’s facility in Bourges operated continuously, manufacturing between two and four vehicles monthly. The company has set a goal of increasing output to eight units per month by December 2023.

Enhanced ammunition

GIAT and its successor entities engineered 155 mm projectiles to optimize the CAESAR system's operational range, notably the LU 211, produced at Les Forges de Tarbes located within the municipal arsenal. This forge underwent privatization in November 2021, acquired by a French company recently recapitalized with €100 million. In 2020, the French Minister of the Armed Forces authorized a €25 million agreement for the facility to supply munitions to the French Army over ten years. The privatization yielded an annual €9 million funding from 2021 through 2024, alongside an additional €2 million investment in late 2021 aimed at modernizing the plant, which also manufactures 120 mm rounds for the Leclerc tank.

CAESAR 6x6 Mark I

The CAESAR is a wheeled self-propelled howitzer with a 155 mm caliber and a barrel length of 52 calibers, equipped with an 18-round magazine. It is usually operated by a crew of five but can function effectively with as few as three personnel. The system is transportable via C-130 or A400M aircraft and achieves a firing range of approximately with Extended Range Full Bore (ERFB) ammunition, extending beyond when utilizing rocket-assisted projectiles. It incorporates an autonomous weapons suite comprising the SIGMA 30 inertial navigation unit, ballistic computer, and optionally a muzzle velocity radar. The system is compatible with any C4I infrastructure and fully integrated into the ATLAS Fire Control System. At Eurosatory 2016, Nexter presented an automated aiming solution based on SIGMA 30 technology. Designed for rapid shoot-and-move operations, CAESAR can be ready to fire within one minute and reposition in under 40 seconds, delivering up to six rounds per minute.

CAESAR 8x8

The CAESAR 8x8 variant mounts its artillery system on a modified Tatra 817 eight-wheel chassis to boost mobility. It features a standard unarmored forward cabin accommodating four crew members, with an option for a fully armored cab. The vehicle's gross weight varies depending on armor configuration but hovers around 30 tonnes. Powered by a 410 hp diesel engine, it carries up to 36 rounds. Nexter introduced this model at DSEI 2015 as part of its initiative to broaden operational versatility and fulfill diverse military demands.

CAESAR 6x6 Mark II

In February 2022, Nexter was awarded a €600 million contract by the French defence procurement agency (DGA) to develop and manufacture the CAESAR 6x6 Mark II artillery platform. This contract initiated a four-year development period followed by production. Subsequently, in January 2024, the DGA granted Nexter an additional €350 million contract for the procurement of 109 CAESAR NG units destined for the French Army. Nexter leads this program alongside principal partners Arquus (providing chassis) and Safran (handling electronics).

The Mark II version offers improved mobility, connectivity, ballistic protection, and firing efficiency supported by an AI system developed by Helsing. It incorporates a new six-wheel chassis from Arquus and features an armored cabin with four doors designed for enhanced agility. The powertrain includes a 460 hp engine—more than twice as powerful as its predecessor—coupled with an automatic transmission. Fire control software has been upgraded and Safran’s Geonyx inertial navigation system replaces former components to enhance accuracy in environments lacking GNSS signals. A more robust hydraulic pump accelerates stabilizer deployment, reducing setup times.

The armored cabin complies with STANAG 4569 Level 2 standards for mine and ballistic protection, increasing vehicle weight to approximately 25 tonnes while retaining transportability by A400M aircraft—a key requirement for France. The system is prepared for integration into the SCORPION combat network vetronics suite, including CONTACT program’s NCT-t tactical radio and Thales’ ECLIPSE anti-IED jammer technology, which may be extended to counter-drone functions; Belgium has adopted this technology natively.

Deliveries of all 109 units to the French Army are planned between 2026 and 2030. Belgium and Lithuania represent initial export clients, having placed orders for 28 and 18 units respectively.

Operational deployment

In the summer of 2009, the 3rd Marine Artillery Regiment () introduced eight CAESAR units to Afghanistan, later augmenting their presence with an additional five stationed at FOB Tora, Tagab, and Nijrab, all outfitted with enhanced cabin armor. The French Army also deployed CAESAR howitzers in southern Lebanon under the UNIFIL mandate.

During Operation Serval in Mali, four CAESAR systems were sent by the . These artillery pieces played an active role in the Battle of Ifoghas. Additionally, France dispatched four CAESARs to Iraq to assist during the Battle of Mosul (2016–17), providing fire support to Iraqi forces between October 2016 and July 2017. Later, from November 2018 through April 2019, multiple CAESARs were positioned near Iraq’s border with Syria at Firebase Saham, supporting the Syrian Democratic Forces during the Battle of Baghuz Fawqani.

The Royal Thai Army utilized CAESAR howitzers against Cambodia’s BM-21 Grad rocket launchers in April 2011, reportedly neutralizing several units. It is believed that the Saudi Arabia National Guard employed CAESARs during the Saudi-led campaign in Yemen, offering artillery support along the Saudi-Yemeni frontier.

Starting in May 2022, France began delivering CAESAR 6x6 howitzers to Ukraine amid the Russo-Ukrainian War, completing a total of 30 units by late 2023. Denmark finalized the delivery of all 19 CAESAR 8x8 models to Ukraine by April 2023. By February 2025, Ukrainian forces had lost seven CAESARs—six 6x6 and one 8x8—with three additional units sustaining damage.

Operators

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Operators (September 2023)	Orders		Deliveries				Donation [ + / - ]	Known Losses [ - ]	Operational
	Caesar (Mk1)	Caesar NG (Mk2)	Sherpa 5 6×6	Unimog U2450L 6×6	Tatra 817 8×8	Caesar NG (Mk2) 6×6
Armenia	36	–	–	–	–	–	–	–	0
Belgium	–	28	–	–	–	–	–	–	0
Czechia	52 +10	–	–	–	–	–	–	–	0
Denmark	15 +4	–	–	–	19	–	-19	–	0
Estonia	12	–	6	–	–	align=center style= "border-right : solid  ; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9; solid #ADE3B9;">–	–	–	–	6
France	77 +30	109	77 ( +30)	–	–	– ( +109)	-30	-1	46
Indonesia	37 +18	–	55	–	–	–	–	–	55
Lithuania	–	18	–	–	–	– ( +18)	–	–	0
Morocco	36	–	36	–	–	–	–	–	36
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• The Danish Army had no prior experience operating CAESAR before transferring their units to Ukraine.

Current operators

• - Estonian Land Forces: On 19 June 2024, Estonia placed an order for 12 CAESAR Mk1 howitzers produced in France, with an option to acquire additional units. The initial batch of six was delivered by January 2025.
• - French Army: The French Army initially procured five CAESAR units by 2003 from a 2000 contract. This was followed by a significant acquisition of 72 CAESAR 6x6 howitzers in late 2004, with deliveries commencing in July 2008.
• - Indonesian Army: Indonesia invested $240 million to obtain 37 CAESAR systems; the first pair was delivered in September 2012. A subsequent order for 18 more units was placed in February 2017.
• - Royal Moroccan Army: In January 2020, Morocco purchased CAESAR 6x6 howitzers for €170 million, alongside €30 million allocated for ammunition. By September 2022, 36 units out of a maximum of 60 had been received under this contract.
• - Saudi Arabian National Guard: GIAT sold a total of 76 CAESAR units to Saudi Arabia in 2006, with an option for four additional pieces confirmed in January 2007. Assembly responsibilities were divided between France and Saudi Arabia, completing delivery of all 80 units by 2018.
• - Royal Thai Army: Six CAESAR howitzers mounted on Sherpa 6x6 chassis were ordered in 2006 and have been operational since 2010.
• - Ukrainian Ground Forces: In response to the Russian invasion of Ukraine in 2022, France and Denmark supplied multiple CAESAR artillery pieces:
  • Donations:
    • France contributed a total of 30 CAESAR Mk1 (6×6) units between April 2022 and January 2023.
    • Denmark delivered 19 CAESAR Mk1 (8×8) howitzers by April 2023.
  • Caesar coalition for Ukraine: Initiated on 18 January 2024 by France and the United States to support Ukraine’s artillery modernization efforts, with plans to produce 78 units during the year.
  • Orders:
    • Ukraine placed an order for six CAESAR howitzers in January 2024.
    • France committed to supplying twelve units each in January and June of 2024 to aid Ukraine.
    • Additional coalition members from 22 countries are expected to fund the program but have not yet submitted orders.
  • Deliveries:
    • By early 2024, six CAESAR systems had been delivered to Ukrainian forces.

Future deliveries

• - Armenian Armed Forces: During Eurosatory 2024, Armenia’s Defense Ministry formalized a military-technical cooperation agreement with KNDS. France agreed to provide Armenia with 36 CAESAR Mk1 howitzers, contributing to a combined total of 60 systems sold including those destined for Croatia and Estonia.
• - Belgian Land Component: Belgium secured nine CAESAR NG 6x6 howitzers in a 2021 contract valued at approximately €48 million. This was followed by a second agreement in 2022 worth €62 million for an additional nineteen units. Deliveries are scheduled to commence in 2027.
• - Czech Land Forces: Nexter obtained a €200 million contract in June 2020 for supplying the Czech Republic with fifty-two CAESAR 8x8 systems mounted on Tatra chassis. A further ten units were ordered in December 2022.
• - French Army: The French Army has placed an order for one hundred nine CAESAR NG howitzers, with deliveries expected to begin in 2026.
• - Lithuanian Land Forces: Lithuania joined the CAESAR NG (Mk2) program in June 2022 by ordering eighteen units; initial deliveries are projected for 2026.
• - Slovenian Army: In July 2024, Slovenia signed a Letter of Intent with France aimed at collaborative European procurement of CAESAR artillery systems. By June 2025, Slovenia confirmed an order for twelve units slated for delivery by 2028, along with an additional six systems planned by 2030, totaling eighteen howitzers.

Prospective operators

• - Brazilian Army: During the 2024 G20 summit held on 30 October 2024, French President Emmanuel Macron reportedly proposed a defense deal to Brazilian President Luiz Inácio Lula da Silva that included 36 CAESAR howitzers. This proposal coincided with postponements in the contract for Elbit Systems' ATMOS 2000, influenced by diplomatic strains arising from the Gaza war and the ongoing Israel–Hezbollah conflict.
• - Croatian Army: At Eurosatory 2024, Croatia entered into a framework agreement with France for a possible procurement of the Mk2 CAESAR variant, though no purchase commitment was made.
• - Finnish Navy: Issued a tender seeking between 12 and 20 mobile artillery units to replace its 15 Appellate 130 53 TK 130 mm coastal defense guns. The contenders include the CAESAR Mk2 and the Archer.
• - Iraqi Army: Demonstrated interest in acquiring CAESAR howitzers in 2022; French forces had previously deployed this system during missions targeting the Islamic State in Iraq.
• - Malaysian Army: In May 2024, KNDS proposed the CAESAR 6x6, with plans for local assembly and integration at ADSSB facilities located in Segamat.
• - Portuguese Army: The Military Programming Law of 2023 earmarked funding to procure a self-propelled artillery system with a 155mm caliber on an 8x8 chassis, likely the CAESAR, intended to replace M114A1 howitzers. An initial order comprising two batteries (12 units) of SPW 155 6x6 was confirmed, with prospects for scaling up to 36 units.
• - Bulgarian Land Forces: Defence Minister Atanas Zapryanov affirmed Bulgaria’s intention to participate in a collective acquisition program for CAESAR artillery systems.

Previous operators

• - Royal Danish Army: The CAESAR 8x8 was selected on 14 March 2017 as Denmark’s new artillery platform. An initial procurement of 15 units was placed in May 2017, followed by an additional four in October 2019, bringing the total to 19 howitzers. Delivery schedules were postponed from summer 2020 to spring 2021 due to the COVID-19 pandemic, with full delivery expected by 2023. However, on 19 January 2023, Denmark resolved to transfer all systems to Ukraine amid the ongoing Russian invasion.

This decision resulted in a capability shortfall, triggering a new acquisition process where Nexter and Israel's Soltam Systems competed. Ultimately, Denmark selected the ATMOS 2000 over CAESAR, citing production delays with CAESAR and Soltam’s more rapid delivery timeline. Additionally, Denmark’s existing use of Soltam’s Cardom 120 mm self-propelled mortar and interest in Elbit Systems’ PULS rocket artillery supported consolidating suppliers from Israel.

Unsuccessful bids

• - Brazilian Army: The CAESAR was proposed under the "VBCOAP 155mm SR" initiative for supplying 36 self-propelled guns. Rivals included Avibras Aeroespacial's Sistema de Artillería 155mm/52 AP SR Tupã, KMW's Artillery Gun Module based on the PzH2000 platform, and Elbit Systems' ATMOS 2000. Elbit’s local subsidiaries provided guarantees for logistical support and technology transfer, resulting in ATMOS 2000 securing the contract in April 2024.
• - National Army of Colombia: As part of the "Soberana" program aimed at selecting a future 155 mm artillery system, CAESAR competed against ATMOS 2000 and Turkey’s Yavuz SPh 6x6 by MKE. Although initially favored with a $101.7 million contract notification, negotiations stalled due to budget constraints. Colombia eventually procured eighteen ATMOS 2000 units within the same budget.
• - Norwegian Army: In a shortlist announced in 2016, CAESAR competed alongside K9 Thunder, PzH2000, and an upgraded M109 Paladin replacement offered by RUAG. The K9 Thunder was chosen in December 2017 as Norway’s replacement for eighteen M109A3GN howitzers.
• - British Army: Aiming to replace AS-90 howitzers by around 2032 under the Mobile Fire Platform (MFP) program, the UK evaluated several self-propelled artillery options. As an interim measure following transfers of AS-90s to Ukraine, it acquired fourteen Archer Artillery Systems. Competitors included Hanwha Aerospace’s K9 Thunder and KNDS’s CAESAR 8x8 and RCH 155 variants. In April 2024, the RCH 155 was selected for the MFP project.

Evaluation only

• - Indian Army: Under the 2021 Field Artillery Rationalisation Plan, the Indian Army is focused on upgrading its artillery capabilities with an emphasis on indigenous solutions. The plan anticipates acquiring 814 truck-mounted guns through the MGS program and released a Request for Information (RFI) on 3 April 2021 for a howitzer suitable for desert, high-altitude, and mountainous operations. In 2014, the CAESAR system was proposed via a collaboration between Nexter and Larsen & Toubro, mounted on an Ashok Leyland Super Stallion 6×6 chassis. Initially, the procurement envisioned 200 units off-the-shelf and 614 manufactured domestically; however, the tender was later canceled to prioritize designs developed locally under the Make in India campaign.
• - United States Army & United States Marine Corps: During 2021, the Army conducted "Mobile Howitzer Trials and Shoot-Off," evaluating systems including CAESAR, ATMOS 2000, Archer, and Nora B-52. Although CAESAR garnered favorable reviews, the Army ultimately chose not to proceed with acquiring a wheeled howitzer platform.

See also

Other French artillery

• MEPAC, self-propelled mortar carrier

References

Citations

External links

• Giat Industries
• Nexter Systems
• Janes.com
• CAESAR 155mm Artillery System, France at Army-Technology.com
• History and specifications of CAESAR by the fr:Confédération Amicale des Ingénieurs de l'Armement