border Ukraine on their east. Poland additionally borders Belarus and Russia's Kaliningrad Oblast to the northeast. The Czech Republic is fully surrounded by other EU members. Hungary borders Serbia, a candidate for EU accession, in the south. Ukraine Ukraine, an eastern neighbor of the V4 that is not a member of the EU, is one of largest recipients of the International Visegrád Fund support and receives assistance from the Visegrád Group for its aspirations to European integration. Ukraine joined the Deep and Comprehensive Free Trade Area with the EU and therefore with the V4 in 2016. The 2022 Russian invasion of Ukraine has led to tensions within the Visegrád Group, with Hungary under Viktor Orban opposed to harsher sanctions against Russia and the Czech Republic, Slovakia, and Poland strongly supporting Ukraine. In November 2022, Czech Prime Minister Petr Fiala stated, “This is not the best of times for the (Visegrád) format, and Hungary’s different attitudes are significantly influencing and complicating the situation.” Country comparison See also Other groups in Central Europe AHICE (Art Historian Information from Central Europe) Bucharest Nine Central European Defence Cooperation Central European Initiative Salzburg Forum Three Seas Initiative Similar groups Association Trio Commonwealth of Independent States Craiova Group EU Med Group Lublin Triangle Nordic Defence Cooperation Nordic-Baltic Eight Other Central Europe Comecon Eastern Bloc International Visegrád Day Pact of Free Cities British–Polish–Ukrainian trilateral pact Soviet Union Warsaw Pact Intermarium (region) References External links 1991 establishments in Europe 20th-century military alliances Bottom-up regional groups within the European Union Central European intergovernmental organizations Czech Republic–Hungary relations Czech Republic–Poland relations Czech Republic–Slovakia relations Hungary–Poland relations Hungary–Slovakia relations Poland–Slovakia relations European integration Foreign relations of the Czech Republic Foreign relations of Hungary Foreign relations of Poland Foreign relations of Slovakia Intergovernmental organizations International political organizations Organizations established in 1991