Book excerpt: North America is replete in aviation history, both military and civilian. The sheer size of the United States dictated an early interest in air defense and profoundly influenced the nation's dependence on air travel. It is no wonder that the United States developed as an air-faring nation. A large part of the leadership that contributed to that development can be traced to America's Air Force. Indeed, its proud military heritage is embodied in the dedicated individuals who have served and continue to do so-and in the marvelous aircraft they have flown. The preservation and public display of these aircraft is a labor of love for many, including the editor of this book. If you are an enthusiast of military aviation history, or one with a passing interest who simply wishes to learn more, you will find a wealth of information in these well-researched pages.