7 May 2025

Britain Faces Rising Global Threats: Ex-UN Chief Sir Mark Lyall Grant on Cyber Wars, Russia and the Future of Security

Tabish Ali 

During his time at the UN, Sir Mark was an active voice in Security Council debates on protecting civilians in conflict—particularly women and girls—and consistently underscored the importance of inclusive peacebuilding.

His support for gender equality and human rights initiatives has shaped his diplomatic legacy, reflecting principles of allyship that remain deeply relevant in today’s global leadership conversations.

In this exclusive interview, Sir Mark shares his perspectives on hybrid warfare, the evolving nature of diplomacy, and the future of the US–UK special relationship in a rapidly changing world.

Q: As hybrid threats continue to blur the lines between war and peace, how would you define ‘hybrid warfare’ in today’s security environment, and what implications does it carry for national defence strategies?

Sir Mark Lyall Grant: "Well, the big nations in the world—the main powers—are not actually at war with each other and haven’t been, obviously, for several years. But that does not mean that they’re at peace. We’re in a sort of stage at the moment of what some people call a hot peace or hybrid warfare. What that means is that, whereas we are not directly fighting against our enemies, we are doing so in different ways.

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