The Russians now realized that they had watchful enemies all round them, and rightly conjectured that they would find the enemy's heavy ships in the straits ready for battle. [Illustration: BATTLE OF TSU-SHIMA. GENERAL MAP] At 10 a.m. another cruiser squadron appeared on the port beam. This was Dewa's division, made up of the American-built sister ships "Kasagi" and "Chitose," of nearly 5000 tons, and two smaller protected cruisers, the "Niitaka" and "Otowa," lately turned out by Japanese yards. They seemed to invite attack. At a signal from the admiral, the eight armour-clads of the starboard line steamed ahead of the port line, turned together to port, and then, turning again, formed line ahead, leading the whole fleet. At the same time the transports moved out to Starboard, guarded by the "Vladimir Monomach" (detached from the port division), the "Svietlana," "Almaz," and "Ural." Dewa's cruisers held a parallel course with the Russian battleships for more than an hour, still apparently unsupported. The range was about five miles. At 11.20 the Russians opened fire on them. Semenoff says that it was the result of a mistake. "The 'Orel' fired an accidental shot (which she immediately reported by semaphore). Unable, with smokeless powder, to tell by which of the leading ships it had been fired, the fleet took it as a signal from the 'Suvaroff' and opened fire. Of the whole fleet the fire of the 3rd Squadron was the heaviest." This squadron was made up of Nebogatoff's "old tubs." Their heavy fire was probably the result of undisciplined excitement. The Japanese fired a few shots in reply, but no harm was done on either side. Rojdestvensky, who had kept the guns of his flagship silent, signalled "Ammunition not to be wasted," and the firing ceased in five minutes, just as the Japanese turned slowly and increased their distance. Orders were now signalled for the men of the Russian fleet to have their dinners, and the officers lunched in turn. The harmless skirmish encouraged some of the Russian crews with the idea that they had been in action and were none the worse, and had driven the Japanese away. At noon the fleet was due south of Tsu-shima, which towered like a mountain out of the sea a few miles ahead. The signal was hoisted, "Change course N.23°E. for Vladivostock." It was the anniversary of the Tsar's coronation. Round the wardroom tables in his doomed fleet the officers stood up and drank with enthusiasm to the Emperor, the Empress, and "victory for Russia!"