Islamic State has set its sights on taking over Libya as a bridgehead to eventually waging war all across southern Europe, the British Telegraph is reporting on Wednesday.The newspaper cited letters written by ISIS supporters.According to the report, ISIS jihadists plan to “flood Libya with militiamen from Syria and Iraq, who will then sail across the Mediterranean posing as migrants on people-trafficking vessels.”ISIS “would then run amok in southern European cities and also try to attack maritime shipping,” the Telegraph reported.