trade agreement and situation in Kosovo. President of Ukraine Viktor Yushchenko visited Serbia in June 2009, during the XVI Summit of Heads of Central European States in Novi Sad. Foreign Minister of Serbia, Goran Svilanović visited Ukraine in February 2002. Ukrainian Minister of Defense Yevhen Marchuk, visited Serbia in February 2004. Ukrainian Foreign Minister Kostyantyn Gryshchenko, visited Serbia in October 2004. In January 2005 Serbian Foreign minister Vuk Drašković, visited Ukraine on the occasion of the inauguration of President Viktor Yushchenko. Drašković visited Ukraine again in June 2005 and March 2006. Ukrainian Foreign minister Borys Tarasyuk visited Serbia in January 2006 and Arseniy Yatsenyuk visited Serbia in July 2007. Zoran Šami, Speaker of the National Assembly, met Ukraine's Chairman of the Verkhovna Rada Volodymyr Lytvyn, during the session of the Parliamentary Assembly of the Organization of the Black Sea Economic Cooperation in Kyiv in June 2005. Mayoress of Belgrade, Radmila Hrustanović, visited Kyiv in June 2002. Officials of Serbia and Ukraine have had important meetings in multilateral arenas as well. The most important was the meeting between Presidents Kuchma and Koštunica at the Earth Summit 2002 in Johannesburg. PORA, a civic youth organization from Ukraine, was trained by members of the similar organization from Serbia - Otpor!. Otpor movement helped bring down the regime of Slobodan Milošević during 5th October and they trained Pora members in organizing Orange Revolution against the regime of Leonid Kuchma. In 2008, after the Serbian province of Kosovo unilaterally declared independence as the Republic of Kosovo, Chairman of the Verkhovna Rada Committee for Foreign Affairs, Oleh Bilorus, stated that "Ukraine will back Serbia's stand on Kosovo". Prime Minister Yulia Tymoshenko said that Ukraine must come up with a concept of how to regard the issue of Kosovo, either as a unique phenomenon in the world, or in the context of existence of Transdniester, Abkhazia, South Ossetia and other separatist regions. Ukrainian President Viktor Yanukovych stated on June 4, 2010, that the recognition of the independence of Abkhazia, South Ossetia and Kosovo violates international law, "I have never recognized Abkhazia, South Ossetia or Kosovo's independence. This is a violation of international law". Slavica Đukić Dejanović, Speaker of the National Assembly, met Ukraine's Chairman of the Verkhovna Rada Volodymyr Lytvyn in Kyiv in July 2010. They signed a document on cooperation between the parliaments of Ukraine and Serbia on July 7, 2010. In April 2011, Ukraine's Chairman