SOFIA — The euro is more than just a currency: it’s a geopolitical insurance policy in a fragmenting world.

That was the message the EU’s most senior economic leaders sent to a skeptical Bulgarian public during a pro-euro charm offensive in Sofia on Tuesday.

Bulgaria is due to adopt the euro on Jan. 1, 2026, but only about half the population supports joining the single currency. Fears about inflation and centralization of power in Brussels and Frankfurt — exacerbated by alleged Russian disinformation campaigns — have turned many against the project.

In a push to ease these concerns, Economy Commissioner Valdis Dombrovskis and European Central Bank President Christine Lagarde each stressed the geopolitical benefits of joining the euro.

“Bulgaria is joining the euro … at a point when there is more volatility, at a time when we have more shocks, one after the other, compounded, and at a time where the global order, as we have known it, is more fragmented, and when friends are probably fewer,” said Lagarde, adding: “It’s important to close ranks and to be together.”

Lagarde said that during the financial crisis, the single currency had proved a defensive shield against shocks and depreciation.

Dombrovkis said that, in itself, the adoption of the euro could help Bulgaria compensate for growing geopolitical risks in investors’ eyes.

“In Baltic countries, despite being geopolitically exposed, the borrowing costs were lower than in Poland, and to a large extent investors assessed that [the euro] is a stabilizing factor,” he said.

Bulgaria’s accession to the euro has been planned for more than a decade, but as the date got nearer, it has spawned conspiracy theories and populist politics, alongside more justified concerns about the currency changeover.

Investigative reports have identified Russian-funded social media campaigns to undermine support for the euro. Last April, the far-right party Revival, which arranged several anti-euro protests over the last year, signed a deal with Vladimir Putin’s Russia United.

Asked about Russian influence on public opinion about the euro, Dombrovskis said: “It is not a secret that Russia is waging a hybrid war against Europe and European member states. It is provocation, acts of sabotage, violation of European airspace, meddling in political processes in the European Union, also in other countries, and it is spreading disinformation.”

The percentage of Bulgarians who support the euro has slightly increased in the last few months, reaching 51 percent according to a survey cited by Finance Minister Temenuzhka Petkova — up from 45 percent earlier in the year.

European Stability Mechanism chief Pierre Gramegna highlighted risks coming from Washington’s new approach to monetary policy and cryptocurrencies: “The U.S. administration is changing its position on so many topics, including on finance and currency, that being part of a large bloc is a huge advantage,” he said, adding people in Bulgaria are not fully conscious of this.

“The risk entailed in the digital currencies can be faced better if we are in the euro area,” he said.