At dawn on November 22nd, 1917, British troops who had sheltered for the night in an old Turkish trench on the ridge of Nebi Samwil obtain the first sight of Jerusalem, whose domes and minarets are seen faintly along the distant sky-line. Further off, in the centre, is the Mount of Olives. The smoke of an exploded shrapnel-shell hangs dark in the air, and another shell has burst down the ridge to the right.