Book excerpt: A fully illustrated history of the Royal Air Force while on operations, publishing to mark the centenary of its foundation in World War I. The world's first independent air force, the Royal Air Force celebrates its centenary in 2018. In the 100 years since the end of World War I, the service has been involved in almost continuous operations around the globe, giving the RAF the longest and most wide-ranging history of any air force in the world. But over the years this history has also become entangled with myths. The Royal Air Force: A Centenary of Operations sets the record straight, dispelling these as it uncovers – in both words and photographs – the true exploits and accomplishments of RAF personnel over the last 100 years. From its formation as an independent service in the dying days of World War I, its desperate fight against the Axis air forces in World War II, to its commitments during both the Cold War and modern times, this is the complete story of how the RAF has defended Britain for a century.