Covers major American conflicts from the Colonial Wars through the War on Terrorism in the context of cultural and social events and conditions on the home front. Has specific entries on Homeland Security and the Homeland Defense Department.

Comprehensive guide to the history, uses, related scientific measures, and technology of espionage and intelligence. Topics include United States Homeland Security and other national security principles, both historical and modern.

Contains brief descriptions of the most "serious and influential terrorist personalities and organizations and the most significant motivations and victims of the terrorism." There are entries for "Homeland Security, Office of" as well as a section entitled "U.S. and International Reaction to September 11, 2001, Day by Day." This provides a timeline from 9/11 to 11/26/2001.

Contains articles including brief descriptions of each issue's historical background, important statutes and cases, profiles of various U.S. laws and regulations, and details of how laws and regulations vary from state to state. Has specific entries on Homeland Security and the Homeland Defense Department.

Covers formation of the Department of Homeland Security, increased security measures at airports, the enactment of the Patriot Act of 2001, and the invasions of Afghanistan and Iraq. Provides the history of national security in the United States; descriptions of the various conventional and nonproliferation treaties and regimes; and information on countries of concern to the United States.