It was evident, therefore, that Japan's first object was to shut off Port Arthur from the sea, and her next to cut the railway communication to the North. This done, the Russian fortress, however impregnable to assault, must ultimately fall to investment. From Port Arthur, which, as a glance at the map will show, lies at the very tip of Liao-tung Peninsula, the railway runs due north for six hundred miles through Niuchwang and Mukden to Harbin, where it joins the branch line to Vladivostock. Though Russia has for several years been in occupation of this territory, her hold upon it is by no means secure. The population is distinctly unfriendly, and for the mere defence of the line thousands of troops are necessary. Indeed, it was this necessity that Russia urged as an excuse for her military occupation of Manchuria.
Korea as Base
Within the triangle of which Harbin is the apex, of which the lines to Port Arthur and Vladivostock are sides, and of which the course of the Yalu River is the base, the sphere of immediate military operations practically had to be confined, as the ice-bound condition of the coast to the west of Port Arthur made a landing in force there impossible till the spring. The necessity of maintaining communications tied the Russian forces very largely to the railway lines. But for either belligerent the helpless kingdom of Korea, which lies south of a line drawn between Port Arthur and Vladivostock, for aggressive operations, afforded the most convenient line of advance. Through Korea Russia could menace Japan, and through Korea Japan could most easily march against Port Arthur. Naturally, therefore, Russia's first care was to mass her available troops on the line of the Yalu, and concentrate reinforcements at Harbin ready to be moved to whatever point might prove the objective of the Japanese attack.
Command of the Sea
But the command of the sea was the essential condition to attack by land by either combatant. With the Russian fleet masked or destroyed, Japan could choose as a landing-place for her armies any of the numerous ports on the western coast of Korea, and so approach in force the Yalu River, which divides Korea from Manchuria and the Liao-tung Peninsula. With imperfect command of the sea, Japan would have a second resource. She could land her troops at Masampo, separated only by a hundred miles of sea from her own ports, or she could, at a push, land her forces on the east coast of Korea, at Yuen San or Gensan. But the former plan of operations would have entailed a long overland march before the objective was reached, and the latter the maintenance of communications over difficult and mountainous country. Evidently, then, immeasurable importance attached to the result of the first naval engagements, and to their influence in giving the command of the sea to the one or the other of the two belligerent Powers.
The First Blow
On February 5th M. Kurino, the Japanese Minister at the Court of St. Petersburg, announced to the Government of the Czar that Japan could wait no longer for the long-delayed Russian reply, and that further negotiations were broken off. This startling news reached Europe and America on the evening of Sunday, February 7th; and while its significance was still being anxiously discussed in every capital, and while statesmen and jurists were still trying to convince one another that the rupture of diplomatic negotiations did not necessarily imply the beginning of war, there burst like a thunder-clap the further news that the first grim and irretrievable blow had been struck. Having decided that the arbitrament of war was inevitable, Japan acted on her decision with swift and terrible effect. On the night of Monday, February 8th, a daring attack by torpedo-boats was made on the Russian fleet lying at anchor in the Port Arthur roadstead, and at one fell swoop the boasted might of Russia at sea was hopelessly broken. This astounding intelligence was first conveyed to the world in an official telegram from Admiral Alexeieff to the Czar, couched in the following terms:—
"I most devotedly inform your Majesty that about midnight between the 26th and 27th of January (February 8th and 9th) Japanese torpedo-boats delivered a sudden mine attack on the squadron lying in the Chinese roads at Port Arthur, the battleships Retvisan and Czarevitch and the cruiser Pallada being holed. The degree of seriousness of the holes has to be ascertained. Particulars will be forwarded to your Imperial Majesty."
World-wide Interest
The stunning effect of this news was only enhanced when fuller details of the incident so baldly and laconically announced came to hand. No news of the movements of the Japanese fleet had been allowed to leak out, and its presence before Port Arthur was wholly unexpected by others as well as the Russians. On the 3rd of February the Russian fleet had put to sea, and for twenty-four hours the world was agog with the news of so momentous a movement. But the speculation died suddenly when it appeared that the fleet had returned immediately to its anchorage. The Japanese, with characteristic alertness, realized the splendid opportunity which the necessarily exposed position of the Russian ships afforded to an enterprising enemy.