France, Britain Develop Stratus RS Supersonic Missile
MBDA is building the throttleable ramjet-powered weapon as a companion to its subsonic Stratus LO missile.
Updated on Nov. 15, 2026 in Forecasts
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France and Britain are developing the Stratus RS, a supersonic missile that will use a throttleable liquid-fueled ramjet engine and radio-frequency guidance with synthetic aperture radar. MBDA, the developer, described its range at the Euronaval defense exhibition in Paris on November 3, 2026.
Why it matters
NATO members are strengthening long-range offensive capabilities amid growing military threats from Russia, and the Stratus RS is intended to extend European strike reach well beyond current weapons. The program also reflects a shift toward coordinated European missile development between France and Britain.
The figures come from manufacturer-reported specifications and a defense exhibition presentation, with the Exocet MM40 Block 3's 124-mile range offered as the baseline for comparison. The Stratus RS's own range and the program's cost remain unspecified.
The players
MBDA
MBDA is a European missile manufacturer formed through the consolidation of French, British, German, Italian and Spanish defense missile businesses, and is the developer of the Exocet and Stratus missile families.
Thales
Thales is a French multinational defense and aerospace electronics company that supplies sensor and targeting systems for military platforms worldwide.
The details
The Stratus RS will permit both high-altitude and low-altitude attacks and is intended to perform several missions, including destroying enemy warships and suppressing air defense systems. Thales is supplying its targeting technology, and the weapon is designed to outrange the Exocet.
Timeline
November 3, 2026: MBDA's deputy director described the Stratus RS range at Euronaval.
Current financial year: Britain committed more than £400 million to long-range weapons programs.
Before 2030: Flight testing of the Stratus RS is expected.
Early 2030s: Operational deployment of the Stratus RS is targeted.
The Big Picture
The Stratus RS is positioned as a successor that extends well past the roughly 124-mile reach of the Exocet MM40 Block 3, the family that has long defined European anti-ship missile range. Its supersonic ramjet design marks a departure from the subsonic baseline represented by the Exocet line.
For most readers the Stratus RS will not change daily life directly, but it shapes the defense spending and alliance commitments funded by taxpayers in France, Britain and NATO member states. Its projected deployment in the early 2030s means the budget decisions behind it are being made now.
The takeaway
European missile programs are moving toward coordinated development, so long-range strike capability is becoming a shared commitment between allies rather than a national project. Readers following defense budgets should watch the flight-testing milestones expected before 2030.
What happens next
Flight testing of the Stratus RS is expected before 2030, with operational deployment targeted for the early 2030s.
Further reading
For context on how long-range weapons programs are projected over coming years, see Forecasts.
Source note: This article includes information reported by The Western Journal.
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