Here are entered works on the events, metaphorically referred to as a "war," consisting of military operations, diplomatic activities, and other counterterrorist measures undertaken by the United States during the period from September 11, 2001 to the end of the administration of George W. Bush. Works on government antiterrorist measures and activities during earlier or later periods are entered under Terrorism--Prevention.
Here are entered works on the attacks by terrorists on the World Trade Center in New York City and the Pentagon outside Washington, D.C., using three hijacked commercial jetliners, and on the crash of a fourth hijacked jetliner in a rural area of Pennsylvania on September 11, 2001.
Here are entered works on the use of explosive devices for the purposes of political terrorism, protest, etc. Works on sustained military attacks on cities, military positions, etc., with bombs, shells, rockets or other explosive missiles are entered under Bombardment. Works on military bombardments by means of bombs dropped from the air are entered under Bombing, Aerial.