US stayed 22 years as a unilateral power, from 1991 - the collapse of the soviet Union - to 2114 when Putin annexed Crimea to the mother state Russia - wait the new superpower " Russia ". In fact ,W. Bush committed a fatal mistake - -when he invaded Afghanistan in 2oo1 and Iraq in 2003 as a result of breaking down the two - World Trade Towers - so ,the American treasury can not filful the expenses of the two wars , whereas Obama came to complete the destruction of America - in the world financial crisis , 2008, when he supported the car industry and the losing banks After 9 - 11 US took Islam and the Arabs as their enemies. They invaded Afghanistan and Iraq for revenge. The Americans sell their allies cheap,Reza Bahlawi in Iran and Saddam Husseein in Iraq .The Arabs found out that Amerrica wants to split their countries. They divided the Suddan into two countries , they destroyed the Iraqi army, the Liyan army and the Syrian army.Yemen,now will be six parts, and Libya will be three parts.US strategy was to encourage the Islamic extremists to fight each other rather than fighting America itself.So,Supporting Muslim Brotherhood in Egypt, Syria,Libya and everywhere to fight for them.