Slovakia marks 20th anniversary of EU membership on May 1
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Slovakia observes its annual commemoration of European Union membership on May 1, marking two decades since joining the bloc in 2004. The country entered the EU alongside nine other nations during the union's largest expansion in history, when ten new member states joined the existing fifteen countries. Slovakia has officially recognized May 1 as a memorial day for EU accession since 2011, institutionalizing the celebration of this milestone in the country's European integration.