join the anti-British alliance. Russia captured Finland and made it a Grand Duchy under the Russian Empire. The British decided to take counter-measures and in May sent a fleet, including Centaur, under Vice-Admiral Sir James Saumarez to the Baltic. Thus in March 1808 Implacable was in the Baltic, under the command of Captain Thomas Byam Martin. On 9 July, the Russian fleet, under Admiral Peter Khanykov, came out from Kronstadt. The Swedes massed a fleet under Swedish Admiral Cederstrom, consisting of 11 line-of-battle ships and 5 frigates at Örö and Jungfrusund to oppose them. On 16 August, Saumarez then sent and Implacable to join the Swedish fleet. They chased two Russian frigates on 19 July and joined the Swedes the following day. On 22 August, the Russian fleet, which consisted of nine ships of the line, five large frigates and six smaller ones, moved from Hanko and appeared off the Örö roads the next day. The Swedish ships from Jungfrusund had joined Rear-Admiral Nauckhoff and by the evening of 24 August the combined Anglo-Swedish force had made its preparations. Early the next day they sailed from Örö to meet the Russians. The Anglo-Swedish force discovered the Russians off Hango Udd but the Russians retreated as the Allied ships followed them. Centaur and Implacable exhibited superior sailing and slowly outdistanced their Swedish allies. At 5am on 26 August Implacable caught up with a Russian straggler, the 74-gun Vsevolod (also Sewolod), under Captain Rudnew (or Roodneff). Implacable and Vsevolod exchanged fire for about 20 minutes before Vsevolod ceased firing. Vsevolod hauled down her colours, but Hood recalled Implacable because the Russian fleet was approaching. During the fight Implacable lost six dead and 26 wounded; Vsevolod lost some 48 dead and 80 wounded. The Russian frigate Poluks then towed Vsevolod towards Rager Vik (Ragerswik or Rogerswick), but when Centaur started to chase them the frigate dropped her tow. The Russians sent out boats to bring her in, in which endeavor they almost succeeded. They did succeed in putting 100 men aboard her as reinforcements and to replace her casualties. However, just outside the port, Centaur was able to collide with Vsevolod. A party of seamen from Centaur then lashed her mizzen to the Russian bowsprit before Centaur opened fire. Vsevolod dropped her anchor and with both ships stuck in place, both sides attempted to board the other vessel. In the meantime, Implacable had