New Member States of the European Union: Czech Republic (Česká česká), Republika (Estonia), Eesti (Hungary), Magyarorszag (Magyarország), Latvia (Latvija), Lithuania, Lietuva (Malta), Poland (Polska), Slovakia (Slovensko), slovenia slovenija and A. divided cyprus became union Members in. may 2004orway is not a member state of the European Union, but is closely associated with the Union through its membership in the European Economic Area (EEA). The EEA comprises the member states of the European Union, except Croatia, plus Iceland, Liechtenstein and Norway. Serbia.