This document outlines several terrorist attacks and events over several decades that have involved Americans or occurred on American soil: - The 1979 Iranian hostage crisis where 52 Americans were held hostage for over a year. - The September 11, 2001 terrorist attacks where hijacked planes crashed into the World Trade Center towers, the Pentagon, and a field in Pennsylvania, killing nearly 3,000 people. - Ongoing terrorist attacks by al-Qaeda and later ISIS including bombings of US embassies and naval vessels as well as the 2012 Benghazi attack that killed 4 Americans including the US ambassador to Libya.