After the Sept. 11, through successively launching the Afghan War and the Iraq War in the Middle East, the U.S. has established its military presence in Afghanistan, Iraq and Central Asia.

• 九一一事件后,美国在中东先后发动了阿富汗战争和伊拉克战争,从而取得了在阿富汗、伊拉克以及中亚地区的军事存在。