One source close to the Greek intelligence services told CNN there may be some 200 people in the country with links to jihadist groups such as the Islamic State in Iraq and Syria ( ISIS ) or the al Nusra Front -- the two groups that most Europeans join . Greece is close to terrorism , has an influx of illegal migration from Turkey and is in a dire financial situation . These factor help make it an inviting hub for terrorist groups , experts say . From one source : ' Greece is not a country , just a gateway into Europe '
Greece is close to terrorism , has an influx of illegal migration from Turkey and is in a dire financial situation . These factor help make it an inviting hub for terrorist groups , experts say . From one source : ' Greece is not a country , just a gateway into Europe '