"Putin wants to dissolve trust in the bloc and to divide the EU in order to exert influence on EU member states individually," the President noted. Poroshenko said he is upset with the current development of the situation in the EU. "They say Putin believes the USSR was the biggest tragedy of the 1990s," Poroshenko said. "For me, it would be a tragedy if the EU collapsed." Ukraine's President said the Finns understand perfectly well what is taking place in eastern Ukraine because they themselves survived the so-called "winter war" with Russia.