Mathernová warns Ukraine’s EU path hinges on reforms, corruption fight — interview

1 June, 11:33 AM
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Katarína Mathernová is an unconventional diplomat. She is easy to recognize by her manner of speaking, which is rare for a diplomat of her rank. She does not hide behind vague diplomatic formulas and is quite direct. (Photo: Oleksandr Medvedev)

Katarína Mathernová is an unconventional diplomat. She is easy to recognize by her manner of speaking, which is rare for a diplomat of her rank. She does not hide behind vague diplomatic formulas and is quite direct. (Photo: Oleksandr Medvedev)

Author: Alex Stezhensky

EU Ambassador to Ukraine Katarína Mathernová acknowledges that Ukraine’s further European integration will be neither simple nor quick, speaks candidly about Mindichgate, assesses the country’s energy risks ahead of next winter and explains what she admires about Ukrainians — and what she finds hard to accept.

The facade of the European Union Delegation building in central Kyiv is scarred by shrapnel, and two of its many windows are veined with spiderweb cracks. They are the remnants of Russia’s attack on the delegation in August 2025, when a Russian missile landed nearby and badly damaged the building’s interior. The building has since been restored, but the two windows were left in place as evidence — and as a reminder of Russia’s crimes.

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Mathernová tells NV this during a brief tour of her office. Since her appointment in 2023, she has lived and worked in Ukraine, traveled frequently to the regions and endured blackouts and Russian attacks alongside Ukrainians. The August strike was no exception.

Mathernová is an unusual diplomat. Her way of speaking, rare for someone of her rank, is easy to recognize. She does not hide behind polished diplomatic formulas and is unusually direct. When she needs to say that trust in Ukraine’s authorities after Mindichgate has been “damaged but not destroyed,” she says exactly that.

At the European Commission, Mathernová rose from expert to deputy director-general of the Directorate-General for Neighborhood and Enlargement Negotiations, giving her deep professional knowledge of the EU enlargement process. She is also Slovak by origin, and Slovakia joined the EU in 2004. That gives her a clear understanding of what it means to be a candidate country with a difficult post-communist past — and she speaks from that experience.

— Ukraine is pursuing European integration, and two tracks can be identified on that path. The first is political, the second procedural. Speaking about the political track, after the reelection of Hungary’s government, can we be more optimistic about the start of cluster negotiations for Ukraine and its progress toward the EU?

— Accession to the European Union has always been, and remains, a contentious issue in every round of enlargement. EU enlargement was not on the agenda before the start of Russia’s full-scale invasion of Ukraine.

At that time, it was not an active policy. Only the full-scale invasion, and Ukraine’s decision to apply to join the European Union four days later, created a decisive moment to which we responded positively. Ukraine, and later Georgia and Moldova, submitted applications. That created an entirely new momentum for enlargement that had not existed before. I stress this because I often encounter the view that this path has been so long because we started in 2014.

MAKE HASTE SLOWLY: Katarína Mathernová supports a dynamic EU accession process for Ukraine. However, she believes all procedural aspects must be synchronized — a key principle of the EU’s resilience. Pictured with Prime Minister Yuliia Svyrydenko. (Фото: DR)
MAKE HASTE SLOWLY: Katarína Mathernová supports a dynamic EU accession process for Ukraine. However, she believes all procedural aspects must be synchronized — a key principle of the EU’s resilience. Pictured with Prime Minister Yuliia Svyrydenko. / Photo: DR

From a European perspective, the momentum for enlargement began in February 2022. Since then, the process has moved forward, and we have been working on integration.

Ukraine is an integral part of this process and is leading it. And it is true that under the previous Hungarian government, there was a temporary delay, which we filled with an informal process of comparative analysis of individual laws, procedures and so on. So we did not lose time. But I believe the new Hungarian government creates new momentum for moving toward the formal opening of clusters, and that is the goal by the end of the current Cypriot presidency of the Council of the EU. I think that is their big goal — for us to be able to start opening clusters. So yes, I think there is new momentum now, and let’s make sure it is used in June.

— There are also domestic political factors. How does the new stage of Mindichgate affect Europe’s perception of Ukraine as a partner?

— It is very important to keep reminding people that this is no longer a country defined by corruption. This is a country where corruption exists, and the system is fighting it. Mindichgate itself also means that your anti-corruption institutions are working, that there are people being prosecuted for corruption, and that is important, too. What is not emphasized enough is that we need to work not only on the punitive side of prosecuting corruption, which is extremely important, but also on preventing corruption from arising in the first place.

That is why I find it very encouraging that after Mindichgate emerged in the state energy sector, we were able to reorganize the management of the five largest energy companies with the participation of international observers, one of whom is me. We also revised the charters of these companies. We now have very good supervisory boards at Energoatom, Ukrenergo, Naftogaz, Gas Distribution Networks of Ukraine and Ukrhydroenergo, and this was done in three and a half to four months.

— So for the EU, what matters is not only the scandal itself, but also how the Ukrainian government responds to it?

— Of course. Let’s be honest: There are hardly any countries where corruption can be eradicated overnight. So I think the most important question is whether you have institutions, whether you have processes to fight corrupt behavior and also — importantly, and I think this is very clear in Ukraine’s case — whether there is public demand for it, because that creates pressure on the authorities. And if you look at public opinion polls in Ukraine, corruption is the No. 2 problem for Ukraine. So that creates public demand, and that is an important democratic impulse for the authorities.

— When I talk to my friends who are EU experts here in Ukraine, they always joke that Ukraine will either join the EU all at once, because of the EU’s own political and security reasons, or it will never happen because we will get stuck in a bureaucratic swamp. What do you think?

— I hope we will find a way out of this bureaucratic process, and I believe Ukraine is in a unique situation because it is truly defending all of us. But there are certain aspects of a country’s basic functioning — including economic indicators, rule-of-law indicators, the foundations of the fight against corruption and institutional foundations — that have to be in place. Otherwise, it will be very difficult to hold the EU together, because we are not a state. Sometimes people judge us by our decision-making processes and say: Oh, they are slow, they hesitate. Let’s remember that we are not one state.

We are a collective of 27 countries, so the decision-making process is more complicated than, for example, in a federal state such as the United States. If we were compared with the United Nations, perhaps the picture would look different. So I think we need to find a way to combine political and geopolitical reasons with the bureaucratic process. And there are people in Brussels who are actively working to simplify some processes. But fundamental requirements will always remain a necessary condition before any accession.

NEXT STEPS: Katarína Mathernová is confident that a change of government in Hungary would open opportunities for Ukraine to further advance on its European integration track. (Фото: Oleksandr Medvedev)
NEXT STEPS: Katarína Mathernová is confident that a change of government in Hungary would open opportunities for Ukraine to further advance on its European integration track. / Photo: Oleksandr Medvedev

— Ukraine is ready to accept a long transition period in exchange for faster accession. Is the EU thinking about a special Ukrainian accession model?

— There are many different views on this now, but transition periods have existed during every previous accession. For example, during the “Big Bang” enlargement of 2004, when 10 countries joined the EU, most member states — not all, but most — introduced a seven-year transition period for the movement of workers.

So Latvia was already in the EU, but a Latvian could not go to the Netherlands to work. They had to go through the same approval procedures as before enlargement. So this is an example of a fairly long transition period for such a fundamental EU right as the free movement of workers.

— Let’s talk about the procedures in the first accession cluster. Key issues there are achieving the rule of law, reforming the Constitutional Court and repealing the “Lozovyi amendments,” a series of changes to Ukraine’s Criminal Procedure Code adopted in 2017 that negatively affected the effectiveness of pretrial investigations. In your view, does the Ukrainian parliament have enough reformers to handle this?

— I believe so. We are working very actively with both the Office of the Deputy Prime Minister and the Verkhovna Rada, including individual committees and the Rada leadership, to find the best possible compromise.

— What criteria do you use to assess the quality of this solution? Sometimes we tend to make cosmetic changes to please partners rather than carry out real reforms.

— So you are asking me whether we can tell the difference between cosmetic changes and real ones? (Laughs.) I believe we can, and we will.

— Ukraine is entering the next winter in a very vulnerable energy situation. Russia has increased its production of ballistic missiles, and the conflict in the Middle East has caused a shortage of interceptors. What could EU assistance look like to help Ukraine survive this difficult winter? Would earlier-than-planned integration of the Ukrainian and EU energy markets help in this situation?

— Energy is one of the largest areas of EU support, and we were extremely active this winter. Our support now stands at about 3.5 billion euros (about $4.1 billion) since the start of the full-scale invasion.

In 2022, we created the Energy Support Fund at the Energy Community Secretariat in Vienna, which all donors now actively use.

We organized all logistics and transport for the equipment coming here. There are many things that are not always visible. In addition, we provided about 1 billion euros (about $1.2 billion) to support emergency gas purchases. We support large state-owned companies such as Ukrenergo through investments.

The EU also provides daily import capacity of 2.1 GW of electricity, because we connected Ukraine’s power grid to the EU grid in the first weeks of the full-scale invasion.

However, it is important to note that electricity can be imported only through western Ukraine. The cynicism and tactical sophistication of Russia’s energy attacks lie in cutting transmission links between western and eastern Ukraine. Kyiv is especially vulnerable because it has no power generation capacity of its own. So I am not sure that simply expanding market integration would necessarily guarantee electricity supplies to Kyiv or eastern cities.

HER GEOGRAPHY: To better understand the country, Ambassador Mathernová visits many Ukrainian cities and towns, large and small, including near the front line. Pictured with EU aid at a Ukrainian business. (Фото: Getty images)
HER GEOGRAPHY: To better understand the country, Ambassador Mathernová visits many Ukrainian cities and towns, large and small, including near the front line. Pictured with EU aid at a Ukrainian business. / Photo: Getty images

It is important that we support physical protection for energy infrastructure, which is now being developed. It is important to preserve the integrity of the energy system, as Ukraine managed to do last winter. But there is no doubt that this winter will be difficult, because Russia has attacked every source of electricity generation across Ukraine except nuclear power plants.

Still, I believe many facilities will be restored. In that sense, Ukraine, in my view, is a global leader in recovery, and this is an area we strongly support — both repair work and the development of physical protection systems.

— Ukraine’s financing gap for 2026–2027 is estimated at 10 billion to 15 billion euros (about $11.7 billion to $17.5 billion). The 90 billion euros (about $104.9 billion) from the EU do not cover it. How do you see Ukraine’s options for raising those additional funds if Russia’s frozen assets in the EU are not available to us?

— We are providing a 90 billion euro loan to support Ukraine, which, in my view, is a very clear and generous gesture by the European Union. This gap will definitely be covered in 2026. Yes, in 2027, part of it remains uncovered, but I very much hope that Ukraine’s other partners will also join in and help cover it.

— You have lived in Ukraine for almost three years during the war and have seen this war not in the news, but with your own eyes. How has that changed your view of Ukraine as a diplomat?

— I think my respect for the country and for every individual person has grown. Because I travel quite a lot and am not only in Kyiv, that feeling only grows stronger. I also see projects supported by the EU that are vital for people’s lives and that we perhaps do not promote well enough. But what I find most moving, and also reassuring, is the sense of community, the sense of solidarity among people.

For example, I recently visited a cafe in Lutsk opened by two women with children who have Down syndrome. They built an entire community around it and raise money for the military. So even people who are themselves in difficult circumstances still find the strength to support Ukraine’s Armed Forces. This determination and whole-of-society effort that emerges during the war is hard to understand from reports or television segments. That is what gives me enormous respect and also hope.

— We are talking about what inspires you in Ukraine, but what do you find difficult to accept in Ukraine and Ukrainians? Apart from Russian aggression, of course.

— Russian aggression, harsh winters and sometimes an attitude that someone owes someone something — as if we owe you something. Yes, we all owe Ukraine admiration and gratitude because, as I said, it is defending all of us. But sometimes that attitude can go too far. Still, these are very small things compared with the enormous heroism and suffering Ukraine is going through.

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