It was entirely new for men who were formerly in a regiment, full of traditions, to find themselves in the Tank Corps. Here was a Corps, the functions of which resulted from an idea born of the exigencies of this science-demanding war. Unlike every other branch of the Service, it has no regimental history to direct it, no traditions upon which to build, and still more important from a practical point of view, no experience from which to draw for guidance, either in training or in action. In the Infantry, the attack has resulted from a steady development in ideas and tactics, with past wars to give a foundation and this present one to suggest changes and to bring about remedies for the defects which crop up daily. With this new weapon, which was launched on the Somme on September 15, 1916, the tactics had to be decided upon with no realistic experimentation as ground work; and, moreover, with the very difficult task of working in concert with other arms of the Service that had had two years of fighting, from which to learn wisdom. With regard to discipline, too,--of all things the most important, for the success of a battle has depended, does, and always will depend, upon the state of discipline of the troops engaged,--all old regiments have their staff of regular instructors to drill and teach recruits. In them has grown up that certain feeling and loyalty which time and past deeds have done so much to foster and cherish. Here were we, lacking traditions, history, and experience of any kind. It is easy to realize the responsibility that lay not only upon the Chief of this new Corps, but upon each individual and lowest member thereof. It was for us all to produce _esprit de corps_, and to produce it quickly. It was necessary for us to develop a love of the work, not because we felt it was worth while, but because we knew that success or failure depended on each man's individual efforts. But, naturally, the real impetus came from the top, and no admiration or praise can be worthy of that small number of men in whose hands the real destinies of this new formation lay; who were continually devising new schemes and ideas for binding the whole together, and for turning that whole into a highly efficient, up-to-date machine. [Illustration: KING GEORGE AND QUEEN MARY INSPECTING A TANK ON THE BRITISH FRONT IN FRANCE]