Terrorism’s Fifth Wave is emerging from the shallows

9th September 2025Martin Gallagher, former Police Scotland Superintendent 3 Comments

With the changing nature of terrorist threats and the proscription of Palestine Action, former Police Scotland superintendent Martin Gallagher, now an author, journalist and terrorism expert, looks at what is potentially emerging as a new ‘Fifth Wave’ of global terrorism, its relationship with crime, and the possible impact of branding criminal organisations as terrorist groups.

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Terrorism’s Fifth Wave is emerging from the shallows

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