In the Japanese operations against Manchuria and the Kuantung Peninsula these old principles displayed themselves in undiminished vitality. In the surprise descents against Seoul and at Takusan the work of support was left entirely with the transport squadron, while Admiral Togo took up a covering position far away at Port Arthur. The two elements of the fleet were kept separate all through. But in the operations for the isolation and subsequent siege of Port Arthur they were so closely united as to appear frequently indistinguishable. Still, so far as the closeness of the landing place to the objective permitted, the two acted independently. For the actual landing of the Second Army the boats of the covering squadron were used, but it remained a live naval unit all through, and was never organically mingled with the transport squadron. Its operations throughout were, so far as modern conditions permit, on the lines of a close blockade. To prevent interference was its paramount function, undisturbed, so far as we are able to judge, by any subsidiary purpose of bringing the enemy to decisive action. All through the operations, however, there was a new influence which tended to confuse the precision of the old methods. Needless to say it was the torpedo and the mine. Their deflective pressure was curious and interesting. In our own operations against Sebastopol, to which the Port Arthur case is most closely comparable, the old rules still held good. On the traditional principle, dating from Drake's attack on San Domingo in 1585, a landing place was chosen which gave the mean between facility for a _coup de main_ and freedom from opposition; that is, it was chosen at the nearest practicable point to the objective which was undefended by batteries and out of reach of the enemy's main army. In the handling of the covering squadron Admiral Dundas, the Commander-in-Chief, gave it its dual function. After explaining the constitution of the transport squadron he says, "The remainder of my force ... will act as a covering squadron, and where practicable assist in the general disembarkation." With these two objects in mind he took a station near enough to the landing place to support the army with his guns if it were opposed, but still in sight of his cruisers before Sebastopol, and at such a distance that at the first sign of the Russians moving he would have time to get before the port and engage them before they could get well to sea; that is, he took a position as near to the army as was compatible with preventing interference, or, it may be said, his position was as near to the enemy's base as was compatible with supporting the landing. From either aspect in fact the position was the same, and its choice presented no complexity owing mainly to the fact that for the first time steam simplified the factors of time and distance.