Soon after this the sultan declared war against Russia. This took Catherine by surprise. Other enemies sprang up: the King of Prussia wanted Dantzig, the King of Sweden, South Finland. The latter invaded Russia and might have marched upon St. Petersburg, for all Catherine could collect was an army of 12,000 men. A mutiny in the camp of (p. 191) Gustavus III, compelled him to return to Stockholm, and the opportunity was lost. He defeated the Russians in the naval battle of Svenska Sund, but a second engagement was to the advantage of Russia. The French Revolution caused him to make peace, and to enter into an alliance with Russia against the French. In the south Russian arms were more fortunate. The Turks were defeated in 1789, and 1790, on which occasions a young general named Souvorof distinguished himself. Upon the death of Joseph II of Austria, his successor Leopold made peace with Turkey at Sistova. (1791.) It was the French revolution, which seriously alarmed every crowned head in Europe, and which induced Catherine to follow Leopold's example at Jassy, in January, 1792, Russia kept only Otchakof and the shore between the Bug and the Dniester. Poland, meanwhile, had made an earnest effort at reform. Thaddeus Kosciusko had returned from the United States, where he had fought for liberty and was trying to save his own country. Born in 1752, he entered a military school founded by the Czartoryskis at the age of twelve, and distinguished himself by attention to his studies and duties. His father was assassinated by exasperated peasants, and he himself was scornfully ejected by a powerful noble whose daughter he was courting. Attracted by the struggle of a handful of colonists against powerful England, he went to America and served with distinction in the War of the Revolution. After seeing Great Britain humbled and a new republic established in the New World, he came back to Poland and was soon among the foremost reformers,--a man in (p. 192) whom the patriotic Poles justly trusted. But traitors were found to accept Russian bribes, and for the second time Poland was despoiled. Russia annexed the eastern provinces with 3,000,000 inhabitants, and Prussia took Dantzig and Thorn. Austria was told that she might take from the French Republic as much as she wished,--or could. Manfully and indefatigably did Kosciusko labor to stem the tide of his country's ruin. His patriotism aroused even that of the poor, down-trodden serfs, who had no interests to defend, yet stood by him in battle when the nobles on horseback fled, and wrenched a victory out of defeat. Well might Kosciusko thereafter dress in the garb of a peasant; a gentleman's dress was a badge of dishonor.