The Middle East: A Great Deal Of Variation? The main cause of terrorism is reform, weather it be political, governmental, or religious. The most common cause of terrorism is religious reform because it usually last much longer than the other two types. The fighting in Ireland and Middle East has been going on for a very long time and they have many people and countries to back them finanicaly. The area of conflict which has generated the most significant and ruthless spillover of terrorist violence since 1968 is, of course, the Middle East. This may seem surprising in view of t