How to interpret the tense relationship between US and the Islamic world which has manifested in Sep.llth and deteriorated after the Afghan War and the Iraq War?

• “9·11”事件以极端的方式将美国和伊斯兰世界的冲突展现在人们面前，而其后的阿富汗战争和伊拉克战争更使双方的冲突进一步尖锐化，那么，怎样去解释美国和伊斯兰世界的紧张关系呢?