President of the European Council extended his influence into financial policy, the most important area left to the rotating Council presidency, with the rotating presidency seeing a greater decrease in power than previously planned. Many of the changes introduced with the Lisbon Treaty need concretion through practical implementation by the current actors. The Spanish presidency unsuccessfully tried to challenge the European Council president's prominent post during the first rotating presidency of 2010, while the second half of the year saw a Belgian rotating presidency marked by a weakened caretaker government which did not challenge Herman van Rompuy, himself a Belgian politician. The Belgian rotating presidency
Petro Poroshenko Hungary Viktor Orbán, President of the European Council Herman Van Rompuy, the OSCE Secretary General Lamberto Zannier, UN Under-Secretary-General for Political Affairs Jeffrey Feldman, China's Minister of Culture Cai Wu and Ambassador of Russia to Ukraine Mikhail Zurabov Former Prime Minister of Ukraine Yulia Tymoshenko was also present. After the inauguration ceremony Tymoshenko said about Poroshenko "I think Ukraine has found a very powerful additional factor of stability". At the time of his inauguration, armed pro-Russian rebels, after disputed referendums, had declared the independence of the separatist Donetsk People's Republic and Lugansk People's Republic and controlled a large part of