5 May 2025

AI Technologies and National Security

Professor Kenneth Payne

Introduction: What is Artificial Intelligence?

Artificial intelligence (AI) is rapidly altering the landscape of national security, as with so much else. For the UK, AI offers the possibility to reimagine how it defends its citizens and asserts its influence globally. But there are also many challenges, not least the risk of adverse, unintended consequences, whether from AI’s use in combat, or from its potential to transform democratic society.

‘Artificial intelligence’ encompasses a range of technologies that enables machines to perform tasks traditionally requiring human intelligence. These include: machine learning, where algorithms improve through experience; computer vision, which allows machines to interpret and analyse visual information; natural language processing, which enables AI to understand and generate human language; and autonomous systems, capable of independent decisionmaking in defined environments. These diverse capabilities underpin AI’s expanding role across societal activities, including in national security.

AI is already embedded in everyday life, from personal assistants such as Siri and Alexa to recommendation algorithms that shape our online experiences. In national security, its applications and potential applications are just as varied: AI-driven cybersecurity tools detect and neutralise threats in real-time; predictive analytics forecast potential crises; and autonomous drones provide persistent surveillance with minimal human intervention. These technologies are advancing rapidly, raising both opportunities and risks for defence and security policymakers.

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