But those Western Balkan states briefly returned to the limelight this week when the leaders of the six nations met with the 27 EU heads of government at a special informal summit in Brdo pri Kranju, Slovenia. Summit host Slovenian Prime Minister Janez Jansa was keen to rekindle the neighbors’ membership hopes, but it was a hopeless race.

Mr Jansa said EU membership pledges date back almost 20 years to a leaders’ summit in Thessaloniki in 2003. The EU admitted the former Yugoslav state of Croatia, the birthplace of Marshal Tito , in 2013, but none since. It’s a long way from 2004 when Bertie Ahern hosted a special welcoming ceremony in Dublin for 10 new Member States, eight from the former Eastern Communist bloc, as well as Cyprus and Malta.

Various reasons are cited for the cessation of new EU membership, which is now hitting Serbia with seven million people; Bosnia and Herzegovina, with nearly four million; North Macedonia, with over two million; Kosovo, with nearly two million; Montenegro, with 600,000; and Albania, with nearly three million.

There is a “new limb fatigue”, which persists after the economic crash of 2008, which has since been amplified by the exit of the pro-enlargement UK in 2016. Covid-19 has not been of any help whatsoever more.

But there are also specific problems for these candidates, which means that the unanimous support required from existing members would be difficult to obtain. Five EU states do not recognize Kosovo, which split from Serbia in 2008.

North Macedonia only resolved a name dispute with neighboring Greece in 2019. Its previous efforts to call the territory simply Macedonia have clashed with Athens, which has a province of the same name and also challenges the legacy of the iconic Alexander the Great.

Attempts to group applications in pairs did not add much to the pace of the process. Serbia and Montenegro have started talks, but no one has much faith in the 2025 deadline that former European Commission President Jean Claude Juncker once brashed about.

Albania and North Macedonia are further in the queue, and Kosovo and Bosnia and Herzegovina are often referred to as “candidate countries”. But these potential member rankings vary depending on who you’re speaking with and when.

Outgoing German Chancellor Angela Merkel has always talked about the need to allow these Western Balkan states to join the EU, but French President Emmanuel Macron is very lukewarm and cites the need for clearer membership criteria.

Reports of corruption and the need for all six to implement economic reforms does not help matters. The experience of clashes with Hungary and Poland over the rule of law has also influenced the thinking of established member states like Denmark. For the record, Taoiseach Micheál Martin has been enthusiastic this week in supporting potential members.

There is also an element of chicken and egg. In the past, the EU has hosted the former dictatorships of Greece, Spain and Portugal, with a view to consolidating and supporting democracy and the rule of law. In principle, this has been successful, but there are doubts whether it is possible to take the same path and many Member States demand that reforms, democracy and a market economy take priority. For now, the EU wrestling match with Tito’s legacy continues without much hope for a quick result.