Britain Shares Storm Shadow Missile Blueprints with Ukraine, Prompting Kremlin Warning

During Prime Minister Andy Burnham’s first foreign visit as the United Kingdom’s head of government, the British government agreed to allow the defence firm MBDA to provide Ukraine with classified information on components used in the Anglo-French Storm Shadow cruise missile (the French-produced version is known as SCALP). The blueprints are intended to enable Kyiv to manufacture the long-range weapons domestically, expanding its capacity to strike targets deep inside Russian-held territory. The decision was announced as Burnham met President Volodymyr Zelensky in Kyiv on Ukraine’s 35th Independence Day.

Kremlin warns Britain over Burnham’s secret Storm Shadow plans - London Business News Britain gives Ukraine missile blueprints as Kremlin warns of escalation Daily Star

Western assistance to Ukraine has increasingly moved from supplying finite stocks of weapons to helping Kyiv develop its own defence-industrial base. Stocks of Storm Shadow and SCALP missiles supplied by Britain and France have become constrained, prompting discussions between Kyiv and Paris about establishing local assembly lines. The blueprint transfer reflects this broader strategic shift, aiming to give Ukraine a more sustainable source of long-range strike capability.

Kremlin warns Britain over Burnham’s secret Storm Shadow plans - London Business News Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• Length: 5.1 metres

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• Weight: approximately 1.3 tonnes

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• Range: officially stated as more than 250 km, allowing launch from well outside heavily defended zones

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• Warhead: 450 kg BROACH penetrating warhead designed to destroy hardened targets such as command bunkers, ammunition stores, airfields and bridges

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• Unit cost: each missile is estimated to cost about £2 million

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

These characteristics make Storm Shadow one of the most powerful long-range weapons supplied to Ukraine by Britain.

Kremlin warns Britain over Burnham’s secret Storm Shadow plans - London Business News

He asserted that Britain would not back down until a “just and lasting peace” is achieved. President Zelensky, speaking alongside Burnham, said Ukraine has prepared a set of proposals for ending the war that involve a ceasefire, reciprocal troop withdrawals and a buffer zone, and that additional ideas are being awaited from the United States. The UK government emphasized that the move is intended to strengthen Ukraine’s defensive posture and pressure Russia toward a durable settlement.

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• “You hold that flame in the 21st.” — Andy Burnham, after prime minister

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• “There are several more ideas from the American side, as far as we know. They want to find the right moment to share them. We are waiting for them,” — President Zelensky, speaking alongside president

Britain gives Ukraine missile blueprints as Kremlin warns of escalation

• “Britain is participating in this war,” — Dmitry Peskov, kremlin spokesman

Kremlin warns Britain over Burnham’s secret Storm Shadow plans - London Business News

By enabling Ukraine to produce Storm Shadow missiles domestically, Britain deepens its involvement in the Ukrainian defence industry, a development Moscow views as a direct escalation. The Kremlin has warned that Western facilitation of long-range strike capabilities could justify targeting the nations that provide such technology. For the United Kingdom, the policy is intended to bolster Ukraine’s ability to defend itself and to improve its negotiating position, while the Kremlin perceives it as crossing a threshold from support to active participation in the war.

Kremlin warns Britain over Burnham’s secret Storm Shadow plans - London Business News Britain gives Ukraine missile blueprints as Kremlin warns of escalation