Book excerpt: It was in the closing year of the First World War, on 1 April 1918, that the Royal Air Force was born from the amalgamation of the Royal Flying Corps and Royal Naval Air Service. Since then, the RAF has helped lead the world in the development of aviation and air warfare. From the fighters and bombers of the Second World War, through the early jet age and into modern remotely piloted air systems, the last hundred years' development has been astronomical, and the human story no less impressive. Here Peter Jacobs gathers the most poignant objects of the RAF's proud history and displays them together, in full splendid colour, for the first time. Aircraft, memorials, uniforms, equipment, and some items you would never expect – it's all here, ready to be explored.