The professionalisation of entrepreneurs in violence into a legitimate 'private security' industry provokes profound questions for state-citizen relations. Who has the power to hold these companies accountable, and how?

A bomb blast in Cilvegozu confirmed that free passage for arms and fighters across the Syrian border is creating complex spillovers in Turkey. The administration's humanitarian stance has been uncontroversial, but reports that Turkey has encouraged targeted violence in northern Syria illustrate the interests at play.

Why is Denmark involved in Mali? European leaders should clarify when, why and how to participate in military interventions and warfare abroad. Emerging security challenges in nearby neighbourhood regions, together with a waning Pax Americana, are obliging Europe to reconsider its future global role.

A decision to restrict the flying of the union flag over Belfast City Hall late last year sparked weeks of protests and riots. The cause is rooted deep in the legacy of the peace process.

The most dangerous fall-out of the Syrian civil war in which Turkey also played a significant role seems to be resurgence of the PKK.

The infamous Public Eye award wants your vote on the company that most deserves naming and shaming. Activists from South Yorkshire to the Canton of Vaud are backing security company G4S to win. Here's why.

The British media and political landscape have done much to obscure a proper in-depth understanding of Islamism, the ideology, as separate from the Muslim faith. Two books can be a small help - everyone should read them.