Harold was by the necessity of the case compelled to fight a battle: so far the Norman had prevailed. Tactically however Harold succeeded in forcing the Norman to fight on ground of his choosing, under conditions favourable to the English method of fighting, and unfavourable to the Norman method. He posted his army on a projecting bit of hill, a spur in fact of the South Downs, close to the direct road from Hastings towards London. William of Normandy could not possibly pass the English without fighting: if he did so he was liable to be cut off from his ships. Nor could he wait indefinitely at Hastings: he had no choice but to advance. Further, to receive attack in a defensive position was what gave the best chance of success to the English, practically all foot-soldiers, the best of them clothed in mail shirts and armed with axes. Finally, the piece of ground actually chosen was exactly suitable for its purpose: it was not too large to be fully manned, and it compelled the Normans to charge uphill. On the other hand it is obvious that the Normans, whose main strength lay in mailed horsemen, could not stand on the defensive; attack was what they were fitted for. Harold's army was drawn up facing to the south, on a ridge somewhat under a mile in length. The ground in front sloped away, gently on the right, steeply in the centre, rather less steeply on the left flank, where the little town of Battle now stands. Behind the right and again behind the left there were hollows, the latter being apparently then the most marked. Behind the centre of the hill was a sort of broad isthmus connecting it with the mass of the Downs. Along the whole or part of the front a palisade[4] of some kind seems to have been constructed, by way of protection against the onset of the Norman horsemen: but this cannot possibly have been an elaborate and solid barrier. In the first place there was not time to make such a thing; as has been already noted, the interval between William's landing and the battle was amazingly short for what was done in it. Harold cannot possibly have had more than one October day in which to fortify his position. Nor is there the least probability that the Norman would have looked on, while the position he would have to attack was strengthened to the extent suggested. Moreover there were no materials for such a work ready to hand, though there may well have been plenty for a slighter fence. A chronicler of later date does indeed say that houses were pulled down for the purpose; but the contemporaries imply, if they do not positively assert, that there were none near: the spot is identified in one English chronicle only as being "by the hoary apple-tree." Again, the narratives of the actual battle describe close hand-to-hand fighting, which must have been across the barrier, if there was one; and this is obviously inconsistent with its having been a massive structure, still more so with its having been double or triple.