The departure of the Blue Devils was attended by a good deal of home-made ceremony and a universal deep regret. A genuine liking had sprung up between the Americans and their French preceptors, and when they marched away from camp the soldiers flung over them what detachable trophies they had, the strains of all their bands, the unified good wishes of the whole First Division, and unnumbered promises to be a credit to their teachers when they got into the line. It was the bayonet which proved the first connecting-link between the Americans and the British. American observers had decided after a few weeks that the bayonet was a peculiarly British weapon, and in consequence it was decided that for this phase of the training, the army should rely on the British rather than the French. The British General Staff obligingly supplied the chief bayonet instructor of their army with a number of assisting sergeants, and the squad was sent down to camp. The British brought two important things, in addition to expert bayoneting. They were, first, a familiar bluntness of criticism, which the Americans had rather missed with the polite French, and a competitive spirit, stirred up wherever possible between rival units of the A. E. F. Their willingness to "act" their practice was another factor, though in that they did not excel the French except in that they could impart it to the Americans. The British theory of bayonet work proved to be almost wholly offensive. They went at their instruction of it with undimmed fire. At the end of the first week, they gave a demonstration to some visiting officers. Three short trenches had been constructed in a little dip of land, and the spectators stood on the hill above them. On the opposite slope tin cans shone brightly, hoisted on sticks. "Ready, gentlemen," said the drill-sergeant. "Prepare for trench bayonet practice by half sections. You're to take these three lines of trenches, lay out every Boche in the lot, and then get to cover and fire six rounds at them 'ere tin hats. Don't waste a shot, gentlemen, every bullet a Boche. Now, then, ready--over the top, and give 'em 'ell, right in the stomach." Over the top they went and did as they were told. But the excitement was not great enough to please the drill-sergeant. He turned to the second section, and put them through at a rounder pace. Then he took over some young officers, who were being instructed to train later troops, at cleaning out trenches. Sacks representing Germans were placed in a communicating trench.