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Britain to test readiness for hybrid attack in biggest defence drill for decades - Finance news and analysis from Global Banking & Finance Review
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Britain to test readiness for hybrid attack in biggest defence drill for decades

Published by Global Banking & Finance Review

Posted on July 14, 2026

2 min read

· Last updated: July 14, 2026

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Britain to Hold Biggest Defence Drill to Test Hybrid Attack Readiness in Decades

Britain Prepares for Hybrid Threats with Major Defence Exercise

Overview of the Upcoming Defence Drill

LONDON, July 14 (Reuters) - Britain said on Tuesday it would carry out its biggest home defence exercise in decades next year, seeking to test its ability to counter hybrid threats such as cyberattacks, disinformation and sabotage of critical infrastructure.

Context: Rising Tensions and Accelerated Preparations

Britain and European allies have rapidly accelerated defence preparations since Russia invaded Ukraine in 2022, with NATO warning that Moscow could be ready to attack Europe by 2030. Britain has said Russia has stepped up hybrid threats — from physical and cyberattacks to information warfare.

Details of the Exercise

While the drill scenario would be kept secret, the government said it would test Britain's readiness for hybrid attacks and complement a NATO crisis-management exercise designed to test how allies coordinate political and military responses to major security crises.

The multi-day exercise would involve ministers and hundreds of officials from across government and the public sector, senior minister Darren Jones said on Tuesday.

Updated Threat Assessment

Newly Identified Risks

Britain also updated its official list of the biggest threats it faces, adding attempts to interfere with democracy, such as election interference, disinformation campaigns or foreign influence operations.

Cybersecurity and Infrastructure Vulnerabilities

Overall, seven new risks were added, including cyberattacks on data infrastructure, water infrastructure and police systems, and a "digital resilience failure" risk based on lessons from the CrowdStrike outage in 2024, which crashed more than 8 million Microsoft Windows-based computers worldwide.

Public Awareness and Emergency Preparedness

The government said it would also launch a national public awareness campaign later this year to encourage households to prepare for emergencies such as severe weather, flooding and cyberattacks.

(Reporting by Sam Tabahriti; editing by William James)

Key Takeaways

  • The UK plans its biggest home defence drill since the Cold War to tackle hybrid threats, involving ministers and hundreds of officials.
  • Seven new threats were added to the UK’s official risk register, including cyberattacks on critical infrastructures and learning from the 2024 CrowdStrike outage affecting ~8.5 million devices.
  • A national public awareness campaign will be launched to prompt households to prepare for emergencies like floods, cyberattacks and severe weather.

Frequently Asked Questions

What is the purpose of Britain's upcoming defence exercise?
The exercise aims to test the UK's ability to counter hybrid threats such as cyberattacks, disinformation, and sabotage of critical infrastructure.
Why is Britain increasing its defence preparations?
Defence preparations have accelerated due to heightened tensions with Russia and warnings from NATO about possible future attacks on Europe.
What types of hybrid threats is Britain preparing for?
Britain is preparing for threats including cyberattacks, information warfare, election interference, and attacks on critical infrastructure like water and police systems.
Who will be involved in the defence drill?
Ministers and hundreds of officials from across government and the public sector will take part in the multi-day exercise.
What public measures are being introduced alongside the defence drill?
A national public awareness campaign will be launched to help households prepare for emergencies like severe weather, flooding, and cyberattacks.

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