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From the beginning of 2014,the international order has undergone some quite dramatic changes in several parts of the world.The Ukrainian political crisis has gradually evolved into a U.S.-Russia confrontation two decades after the end of the Cold War.In the Middle East,the extremist group,the Islamic State of Iraq and A1 Sham (ISIS) invaded Iraq,gaining much territory in the north of the country.Iraq has become a new unstable element in the Middle East.