The Union for the Mediterranean, created in 2008 out of the 1995 Barcelona Process, brought together the then 28 EU member states and the southern Mediterranean countries from the Maghreb to Turkey.

Omissions

• The number of EU member states in 2008 was 27, not 28. The EU counted 28 member states only between July 2013 (Croatia's accession) and January 2020 (Brexit), so the speaker applies a post-2013 figure to the 2008 founding of the UfM.
• The UfM's 43 members are not strictly limited to 'the Maghreb to Turkey': alongside the North African and Levantine partners and Turkey, the membership also includes Albania, Bosnia and Herzegovina, Montenegro, Monaco and Mauritania, i.e. Balkan and non-Maghreb countries.
• Descriptions of the UfM as grouping '28 EU member states' (e.g. Turkish MFA page) reflect the post-2013 membership and do not describe the 2008 founding configuration.

Sources

• PrimaryEuropean Commission — History of enlargement: From 6 to 27 membersRomania and Bulgaria join. Two more countries from eastern Europe, Bulgaria and Romania, join the EU, bringing the number of member states to 27 countries.
• PrimaryUnion for the Mediterranean Secretariat — 15 years of the Union for the MediterraneanThe UfM attributes a label to cooperation projects by the unanimous endorsement of its 43 member states. ... Member States, July 2008, Paris (France).
• PrimaryUnion for the Mediterranean Secretariat — 30 Years of the Barcelona ProcessThe UfM brings together all European and 16 Southern and Eastern Mediterranean countries, working together on equal footing under a North-South Co-Presidency
• PrimaryEUR-Lex — Barcelona Process: Union for the Mediterranean (LEGISSUM summary)The Union has been enlarged to 43 States. This includes all the Member States of the European Union (EU), the European Commission, partner and observer ...
• SecondaryRepublic of Türkiye Ministry of Foreign Affairs — Euro-Mediterranean Barcelona Process / Union for the MediterraneanUfM was established at the Paris Summit for the Mediterranean held on July 13th 2008. ... The UfM comprises of 28 EU Member States and 15 Mediterranean countries.