The Royal Naval Air Service's origins were as the Naval Wing of the Royal Flying Corps in April 1912, but did not become a separate service until 1 July 1914. On the outbreak of war in 1914, the service expanded to include service on land, providing support of the Royal Naval Division in Belgium, to the RFC and as one of the early practitioners of strategic bombing. Yet, from its early days, the RNAS had set out to create a force operating aircraft in support of and in association with the Fleet. The RNAS and the Birth of the Aircraft Carrier 1914-1918 traces the development and operational use of aircraft serving with the fleet. It follows the training of personnel and the struggle to produce suitable aircraft and weapons, including the evolution of the aircraft carrier. Nonetheless, the constant thread throughout is the operational history of the RNAS over the North Sea with both the Grand Fleet and Harwich Force. Commencing over Cuxhaven on Christmas Day 1914 and ending with two pivotal operations which determined the future of naval aviation.