2016 年夏，歐盟面臨近 20 年來恐怖主義威脅的最高峰。2015 年初開始，伊斯蘭恐怖分子陸續對法、比、德等國境內大城發動恐怖攻擊，使歐洲國家陷入極度恐慌。本文從歐洲恐怖主義的歷史背景出發，討論歐洲恐怖主義意識形態基礎的轉變，並描述伊斯蘭國對歐洲的威脅。此外，歐洲外交安全政策、內部移民問題與社會問題、聖戰意識形態、網路科技等因素，皆對歐洲近期恐怖主義的發展，產生重大影響。此一波歐洲恐怖攻擊方式，主要 以孤狼式攻擊為主，而歐洲聯盟也以內部與外部行動，企圖回..

In the summer of 2016, Europe was facing its biggest terrorist threat of the last two decades. Form the beginning of 2015, Islamic terrorists have launched a series of attacks on major cities in France, Belgium and Germany. The EU has been in a state of panic after the attacks. First, this article discusses the transformation of terrorist ideology in Europe from a historical background and describes the threat of the Islamic State. In addition, the European foreign and security policy, immigration and social problems, jihadis..