UK refocuses defense strategy on drones amid lessons from Ukraine war
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The UK is set to unveil a major shift in its defense strategy with the upcoming Strategic Defense Review, emphasizing drone warfare under a new 20-40-40 formula influenced by the war in Ukraine.
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A British soldier from The Royal Lancers armored cavalry regiment operates a small uncrewed aerial system (sUAS) alongside an Ajax reconnaissance vehicle, highlighting the integration of drone technology into frontline operations, undated. (British Army Royal Armoured Corps/ X)
The United Kingdom is preparing to overhaul its defense strategy through the implementation of a new "20-40-40" formula, placing a strong emphasis on drone warfare, The Times reported, citing a government source.
According to the report, the upcoming Strategic Defense Review (SDR), scheduled for publication in June, will outline a significant transformation in the structure and combat readiness of the British armed forces.
The proposed 20-40-40 formula divides combat capability into three distinct components:
The initial 20% will consist of tanks and other heavy armored vehicles. These units are expected to be stationed furthest from the frontline, serving as a strategic reserve and providing depth to military operations.
The middle 40% will feature kamikaze drones and other "single-use" remote-controlled weapons systems. These are designed to operate without direct human presence, allowing for high-impact strikes while minimizing personnel risk.
The remaining 40%, positioned closest to the line of contact, will comprise reusable reconnaissance and attack drones, such as the MQ-9 Reaper. These drones will play a crucial role in surveillance and precision engagement capabilities.
Developments in the Ukraine war reportedly influenced the shift in the UK's defense strategy. British defense planners have expressed concern that Russian forces are becoming increasingly experienced and better equipped, prompting the need for modernization in response.
As ITV previously reported, the SDR aims to adapt the armed forces to emerging threats and technological advancements, particularly in drone warfare.
The proposed adjustments are seen as a pivotal move in British military modernization, reflecting the evolving nature of warfare and the increasing reliance on unmanned systems.
This development comes after the US Army outlined on May 1 its most significant transformation since the Cold War, aiming to equip each combat division with approximately 1,000 drones while phasing out outdated weapons and equipment.
This initiative, developed over more than a year of testing at a major training facility in Bavaria and other US bases, is heavily influenced by battlefield insights from the war in Ukraine, where widespread use of small drones has reshaped combat operations.
If implemented, the plan would see the army’s 10 active-duty divisions rely extensively on unmanned aircraft for surveillance, logistics, and offensive missions.
