Storm Shadow on way out in favour of cheaper missiles

Britain is to move away from the Storm Shadow cruise missile that has armed its jets for a quarter of a century, pivoting to a new generation of cheaper cruise missiles so that the Armed Forces can field many more strike weapons at a lower overall cost, the Defence Investment Plan said.

The plan paid tribute to the missiles, whose building “started in the 1990s and they have proved highly effective for conducting operations,” before saying that, learning the lessons of Ukraine, the country was now pivoting to the next generation of low-cost cruise missiles, a change it said would deliver significantly more missiles at a reduced overall cost.

Storm Shadow, developed with France from the 1990s and built by MBDA, is an air-launched cruise missile designed to destroy hardened and buried targets at a range of around two hundred and fifty kilometres, letting an aircraft strike from beyond the reach of many air defences, and it has been among the most heavily used British weapons of the past two decades, fired in Iraq, over Libya, against a chemical-weapons site in Syria and, most consequentially, by Ukraine, where missiles supplied by Britain have struck command posts and logistics deep behind Russian lines and helped sink or damage ships of the Black Sea Fleet.

So valuable has it proved that MBDA restarted production of the weapon in 2025, fifteen years after the last order, in part to keep Ukraine supplied. The shift the plan describes reflects a hard lesson from that war, where expensive, exquisite missiles held in small numbers have been consumed at a rate no peacetime stockpile anticipated, and where the side able to keep firing has often held the advantage, which has pushed the Ministry of Defence towards a better balance between a small number of high-end weapons and a larger stock of cheaper ones that can be made quickly and in volume.

The low-cost cruise missiles are intended to provide that mass, sitting alongside the more sophisticated Stratus missile, named in the same plan as the future of British complex weapons for the hardest targets, so that the country has both the few weapons able to defeat the most demanding defences and the many it would need to sustain a long fight.

Officials have already hinted to the kind of weapon the pivot has in mind, a Ministry of Defence official said a low-cost strike weapon project known as Brakestop “very well could be in our inventory very soon,” calling it a good example of the low-cost mass effectors the country wants more of across the air, land and sea domains, and the same official tied the shift to a wider effort to draw small and medium-sized firms, many of them barely known a year ago, into a market long dominated by a handful of large primes, with weapons that can be built in the United Kingdom and exported into Europe.