Potential enlargement of the European Union in the context of "European Neighbourhood Policy"

Albania is on the current agenda for future enlargement of the European Union (EU). It applied for EU membership on 28 April 2009, and has since June 2014 been an official candidate for accession. The Council of the European Union decided in March 2020 to open accession negotiations with Albania.

However, the country did not start accession negotiations because its candidacy was linked to that of North Macedonia, which was vetoed by Bulgaria. On 24 June 2022, Bulgaria's parliament approved lifting the country's veto on opening EU accession talks with North Macedonia. On 16 July 2022, the Assembly of North Macedonia also approved the revised French proposal, allowing accession negotiations to begin. The start of negotiations was officially launched on 19 July 2022.

Greater Europe refers to the idea of an extended Europe that generally implies a Europe transcending traditional geographic boundaries to include trans-Eurasian countries, or countries in close proximity to Continental Europe with strong political, economic, or cultural links to Europe.

The accession of Bosnia and Herzegovina to the European Union (EU) is the stated aim of the present relations between the two entities. Bosnia and Herzegovina has been recognised by the European Union as a "candidate country" for accession since the decision of the European Council in 2022 and is on the current agenda for future enlargement of the EU. Bosnia and Herzegovina takes part in the Stabilisation and Association Process and trade relations are regulated by an Interim Agreement.

Bosnia and Herzegovina formally applied for EU membership on 15 February 2016, following years of constitutional reforms and engagements with the Dayton Agreement. Bosnia's failure to meet the conditions for the closure of the Office of the High Representative (OHR) in Bosnia and Herzegovina, including addressing state and military property ownership issues and implementing constitutional reforms, had prevented the country from submitting an application until 2016.

Serbia applied to join the European Union (EU) in 2009 and has been a candidate for membership since 2012 (along with nine other states), while negotiations started in 2014 and are still ongoing.

On 28 February 2022, four days after it was invaded by Russia, Ukraine applied for membership of the European Union (EU). Ukrainian President Volodymyr Zelenskyy requested immediate admission under a "new special procedure", and the presidents of eight EU states called for an accelerated accession process. European Commission president Ursula von der Leyen stated that she supports Ukrainian accession, but that the process would take time. On 10 March 2022, the Council of the European Union asked the commission for its opinion on the application. On 8 April 2022, von der Leyen presented Zelenskyy with a legislative questionnaire, which Ukraine responded to on 9 May.

On 17 June 2022, the European Commission recommended that the European Council grant Ukraine candidate status for accession to the EU. On 23 June 2022, the European Parliament adopted a resolution calling for the immediate granting of candidate status for EU membership to Ukraine. On the same day, the European Council granted Ukraine the status of a candidate for accession to the EU. It is one of nine current EU candidate countries, together with Albania, Bosnia and Herzegovina, Georgia, Moldova, Montenegro, North Macedonia, Serbia, and Turkey.