I pass now to Flanders, which is about to become for the second time the training ground of the British Army. The judicious help sent by Lewis the Fourteenth to Ireland had practically diverted the entire strength of William to that quarter for two whole campaigns; and though, as has been seen, there were English in Flanders in 1689 and 1690, the contingents which they furnished were too small and the operations too trifling to warrant description in detail. After the battle of the Boyne the case was somewhat altered, for, though a large force was still required in Ireland for Ginkell's final pacification of 1691, William was none the less at liberty to take the field in Flanders in person. Moreover, Parliament with great good-will had voted seventy thousand men for the ensuing year, of which fully fifty thousand were British,[258] so that England was about to put forth her strength in Europe on a scale unknown since the loss of Calais. But first a short space must be devoted to the theatre of war, where England was to meet and break down the overweening power of France. Few studies are more difficult, even to the professed student, than that of the old campaigns in Flanders, and still fewer more hopeless of simplification to the ordinary reader. Nevertheless, however desperate the task, an effort must be made once for all to give a broad idea of the scene of innumerable great actions. Taking his stand on the northern frontier of France and looking northward, the reader will note three great rivers running through the country before him in, roughly speaking, three parallel semicircles, from south-east to north-west. These are, from east to west, the Moselle, which is merged in the Rhine at Coblentz, the Meuse, and the Scheldt, all three of which discharge themselves into the great delta whereof the southern key is Antwerp. But for the present let the reader narrow the field from the Meuse in the east to the sea in the west, and let him devote his attention first to the Meuse. He will see that, a little to the north of the French frontier, it picks up a large tributary from the south-west, the Sambre, which runs past Maubeuge and Charleroi and joins the Meuse at Namur. Thence the united rivers flow on past the fortified towns of Huy, Liège, and Maestricht to the sea. But let the reader's northern boundary on the Meuse for the present be Maestricht, and let him note another river which rises a little to the west of Maestricht and runs almost due west past Arschot and Mechlin to the sea at Antwerp. Let this river, the Demer, be his northern, and the Meuse from Maestricht to Namur his eastern, boundary.