Wildfires near Bordeaux threaten French nuclear deterrent sites and Rafale assembly

PARIS — Wildfires raging west of the French city of Bordeaux are threatening several of France's key defense-industrial sites, including facilities involved in nuclear deterrence, fighter jet production, and missile propulsion.

Affected Sites

The fires have approached a cluster of defense and aerospace sites west of Bordeaux, representing one of France's most important concentrations of:

• Missile production
• Propulsion systems
• Combat aircraft assembly
• Military electronics manufacturing

Specific affected sites include:

• ArianeGroup facility — produces propulsion components for the M51 submarine-launched ballistic missile
• Dassault Aviation — final assembly line for the Rafale fighter jet
• Roxel — main manufacturing site for solid rocket motors used in MBDA missiles
• French Atomic Energy Commission (CEA) — military nuclear research site near Bordeaux

Company Responses

Dassault Aviation said it was moving sensitive equipment from a site closest to the wildfires to one nearer Bordeaux. Most workers are staying home in line with authorities' instructions. The company moved "a certain number of sensitive equipment" from its site in Martignas and a logistics center in Cestas to its site in Mérignac and local Air Base 106, working closely with France's Directorate General for Armament and local authorities.

Employees at the Mérignac and Martignas plants are staying home unless evacuated, with only teams necessary for equipment transfer and site protection continuing to work.

ArianeGroup evacuated its affected sites and said "all necessary measures have been taken to secure them." The company declined to comment on specific security measures.

CEA closed its military nuclear research site near Bordeaux as the wildfires approached.

Fire Status

The Gironde department has been battling one of France's largest wildfires on record, with over 100,000 acres burned — an area roughly four times the size of Paris.

Satellite data on Tuesday morning showed:

• Active wildfires remained less than 9 km (5.6 miles) west of Dassault's Martignas site (wing assembly plant for the Rafale)
• Active wildfires around 12 km west of ArianeGroup's Candale site (M51 missile propulsion integration)
• Fires approximately 13 km from Saint-Médard-en-Jalles (missile fueling site)
• Fires approximately 16 km from the Le Haillan site (solid-propulsion systems)

NASA's Fire Information for Resource Management System showed fires and hot spots west of Bordeaux were significantly reduced as of 9:00 a.m. local time. However, authorities warned that a new wave of hot weather with a peak on Wednesday, combined with near-record drought conditions, could cause fire activity to increase again.

Emergency Response

Emergency services, aided by local construction companies, worked overnight from Friday to Saturday and throughout the day to clear vegetation and create firebreaks around sensitive sites, according to Gironde department Prefect Sophie Brocas.

Marc Vermeulen, head of the Gironde department fire and emergency service, stated that after protecting lives, the next priority was safeguarding critical infrastructure.

France's military deployed an Airbus A400M aircraft to assist firefighting efforts.

Strategic Concerns

"Whilst the unprecedented forest fires in Gironde are above all an environmental and humanitarian disaster, they also threaten sites that are of vital strategic importance to our nuclear deterrent," said Etienne Marcuz, an associate fellow at the Foundation pour la Recherche Stratégique, in a post on the social media network X on Sunday.

Image: Firefighters use counterfires to remove vegetation ahead of a wildfire, creating a fuel-free buffer zone in Marcheprime, west of Bordeaux, France, on July 26, 2026. (Alain Jocard / AFP via Getty Images)