As 'gate of Europe,' Greece is also an ISIS target

Europe needs to prepare for more attacks by Islamic fundamentalists and new types of attacks, warns the chair of the London-based International Institute for Strategic Studies, Francois Heisbourg, who is visiting Athens at the invitation of local think tank Network for Reform in Greece and Europe.

The global security expert stresses that as the "gate of Europe" for millions of asylum seekers and migrants, Greece is also at risk, as it can be a target as well as a transit point.

Given how Greece is expected to deal with "multiple threats with limited resources," he says he would advocate a Europe-wide program to combat terrorism that would include cross-border cooperation in intelligence and asset sharing.

As a former special adviser on security issues to French presidents Nicolas Sarkozy and Francois Hollande, as well as a founding member of the Franco-German...