America's "small wars," "imperial war," or, as the Pentagon now terms them, "low-intensity conflicts," have played an essential but little-appreciated role in its growth as a world power. Beginning with Jefferson's expedition against the Barbary pirates, Max Boot tells the exciting stories of our sometimes minor but often bloody landings in Samoa, the Philippines, China, Haiti, the Dominican Republic, Nicaragua, Mexico, Russia, and elsewhere. Along the way he sketches colorful portraits of little-known military heroes such as Stephen Decatur, "Fighting Fred" Funston, and Smedly Butler.

This revised and updated edition of Boot's compellingly readable history of the forgotten wars that helped promote America's rise in the lst two centuries includes a wealth of new material, including a chapter on the wars in Iraq and Afghanistan, and a new afterword on the lessons of the post-9/11 world.