The factors that argue for continued Middle Eastern terrorist activity in Western Europe are: (1) it appears likely that the controversial political issues and intra-Palestinian and inter-Arab feuds that trigger Middle Eastern terrorist activity are a long way from being resolved; (2) the continued existence of Middle Eastern personalities like Yasir Arafat, Abu Nidal, and Mu'ammar Quaddafi; and (3) the attractiveness of Europe as a theater of operations for Middle Eastern terrorist groups. Some attributes that had made Europe an attractive operational area for Middle Eastern terrorists are: (1) it contains many large Arab and Palestinian communities; (2) it is a geographically compact area with excellent transportation facilities; and (3) it offers these groups a substitute battleground for their inter-Arab and intra-Palestinian feuds. 1 table and 9 notes. (Author abstract modified)