Don Smith 
American Defenders: The United States Air Force [EPUB ebook] 

It’s off we go into the wild blue yonder to find out the origins from the most amazing air force in the world. Starting with the aerial exploits of balloons used in the Civil War for spying out the enemy, then tracing it to the dunes of Kitty Hawk, AMERICAN DEFENDERS: THE AIR FORCE shows how the United States Air Force keeps skies over the country safe and how they helped defeat any enemy – foreign and domestic.