Conservatives to unveil Britannia Shield plan for UK missile and drone defence

The Conservative Party is set to unveil a plan for a new missile and drone defence system called Britannia Shield at its conference in Birmingham. Shadow Defence Secretary James Cartlidge is expected to outline the proposal in a speech later today. The party says the scheme would be designed to protect critical national infrastructure and military bases from airborne threats.

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According to the Conservatives, the plan would include new radar systems and more interceptor missiles, with a proposed investment of up to £10 billion over 10 years. The party has described the project as a British version of Israel's Iron Dome, although leader Kemi Badenoch said it would not be exactly the same system. She said the aim was to prepare for different types of threats, including drones and missiles, and argued that protecting critical infrastructure would amount to protecting the country as a whole.

The announcement comes as the party seeks to present a major defence commitment ahead of the next general election. It also follows criticism from the Liberal Democrats, who accused the Conservatives of using unrealistic costings for the plan. The proposal is being framed as a future capability rather than an immediate military deployment, with the party saying it would begin with a minimal deployable capability in its first term before being expanded.

The plan builds on wider debate in the UK about air defence and the growing use of drones in modern conflict. The Conservatives said their thinking was informed in part by a defence committee report last November, which argued that the UK was behind some European counterparts in planning for defence against military attack. The party also pointed to the need for a more integrated response combining radar, command systems and interceptor missiles.

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Britain already operates Sky Sabre, its current air defence system, which can intercept munitions and aircraft and integrate with wider defences. That system has previously been deployed in Poland in support of Ukraine and sent to the Middle East earlier this year for defensive action against Iranian attacks. The new proposal would therefore sit within an existing framework of UK air defence, but with a broader domestic focus on infrastructure and base protection.

What remains unclear is how the Conservatives would deliver the system in practice, how the £10 billion figure would be divided across the decade, and how much coverage the network would ultimately provide. It is also not yet clear how the proposal would compare with existing UK and allied air defence arrangements once more detail is released. Cartlidge's conference speech is expected to provide the next substantive update on the party's defence plans.

The Conservative Party has pledged to create a new missile and drone defence network called Britannia Shield if it returns to government at the next general election. The plan would commit up to £10bn over 10 years to an integrated system of radar, command and control, interceptor missiles and counter-drone capabilities. The proposal was set out ahead of a speech by shadow defence secretary James Cartlidge at the party conference in Birmingham.

According to the party, the system would be designed to protect critical national infrastructure, military bases and sovereign territories from advanced threats. Cartlidge is expected to describe it as the most significant upgrade to UK air defence for generations. The Conservatives also framed the plan as a British version of Israel's Iron Dome, although the party's description focused on a broader integrated network rather than a single weapon system.

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The announcement comes amid heightened concern among Nato allies about repeated Russian drone incursions. The Conservatives said their proposal would strengthen Britain's air defences at a time when they argue the country needs a clearer response to airborne threats. Defence Secretary Wes Streeting criticised the party's record in office, saying it had an abysmal record on defending Britain during its 14 years in power and that it owed the country an apology rather than another lecture.

The party said its proposal was informed in part by a defence committee report from last November, which said the UK was lagging behind European counterparts in having a plan to defend itself and overseas territories from military attack. The new plan would build on the three-part structure already familiar in current British air defence thinking: radar to detect threats, command systems to coordinate a response, and interceptor missiles to destroy incoming targets. The Conservatives said the design would also include counter-drone capabilities, reflecting the growing role of unmanned systems in modern conflict.

Britain already operates Sky Sabre, its current air defence system, which can intercept munitions and aircraft and integrate with wider air defences. That system has previously been deployed in Poland in support of Ukraine and was sent to the Middle East earlier this year for defensive action against Iranian attacks. The reference to existing deployments underlines how UK air defence assets have increasingly been used beyond the home front in response to wider regional tensions.

What remains unclear is how the proposed network would be delivered, what timetable would apply, and how the £10bn figure would be allocated across the decade. It is also not yet clear how the plan would compare with existing UK and allied air defence arrangements in practice. The next key moment will be Cartlidge's conference speech, which is expected to provide more detail on the party's defence priorities and the intended scope of Britannia Shield.

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