Book excerpt: Except in a few instances, since World War II no American soldier or sailor has been attacked by enemy air power. Conversely, no enemy soldier or sailor has acted in combat without being attacked or at least threatened by American air power. Aviators have brought the air weapon to bear against enemies while denying them the same prerogative. This is the legacy of the U.S. Air Force, purchased at great cost in both human and material resources. More often than not, aerial pioneers had to fight technological ignorance, bureaucratic opposition, public apathy, and disagreement over purpose. Every step in the evolution of air power led into new and untrodden territory, driven by humanitarian impulses; by the search for higher, faster, and farther flight; or by the conviction that the air way was the best way. Warriors have always coveted the high ground. If technology permitted them to reach it, men, women, and an Air Force held and exploited it -- from Thomas Selfridge, first among so many who gave that "last full measure of devotion"; to Women's Air Force Service Pilot Ann Baumgartner, who broke social barriers to become the first American woman to pilot a jet; to Benjamin Davis, who broke racial barriers to become the first African American to command a flying group; to Chuck Yeager, a one-time noncommissioned flight officer who was the first to exceed the speed of sound; to John Warden, who began a revolution in air power thought and strategy that was put to spectacular use in the Gulf War. This book provides a short history of military air power in the United States from the Civil War to the Persian Gulf War. Chapters are as follows: The Genesis of American Air Power; Trial and Error in World War I; Interwar Doctrine, Organization, and Technology; World War II -- Global Conflict; Air Power in the Nuclear Age; Limited War in Korea; The "New Look" Air Force; Flexible Response and Vietnam; The Cold War Concluded; Air Power Triumphant -- The Gulf War; and The Future7.