On the morning of September 11, 2001, four airliners were hijacked by members of al-Qaeda who aimed to carry out suicide attacks against important targets in the United States. Of the four planes, one struck the Pentagon, one crashed in a field in Pennsylvania, and the two remaining planes were flown into the Twin Towers in New York City. Claiming almost three thousand lives, this event gave birth to a war and brought about everyday sociological changes for Americans.
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