Ukraine has secured an agreement to receive U.S.-produced liquefied natural gas (LNG) through Greece, ensuring essential winter supplies as Russian attacks continue to disrupt the country’s energy production.

The arrangement, announced on Sunday during President Volodymyr Zelenskiy’s visit to Athens, will run from December 2025 until March 2026. Deliveries will reach Ukraine via pipeline routes running across the Balkan region, providing a crucial buffer against ongoing damage to Ukraine’s gas infrastructure.

Greek gas company DEPA and Ukraine’s state-owned Naftogaz confirmed that the deal begins in December, while Zelenskiy noted that actual shipments are expected to start in January. Speaking alongside Greek Prime Minister Kyriakos Mitsotakis, he said Ukraine urgently needs imported gas to make up for production losses caused by recent Russian strikes.

Zelenskiy explained that Kyiv has already secured financing for the imports through support from European partners, guarantees from the European Commission, and contributions from Ukrainian banks. The country is also working with U.S. partners to ensure full funding for the nearly €2 billion required.

For Greece, the agreement reinforces its growing role in Europe’s evolving energy landscape. The country recently concluded its first long-term contract to supply U.S. LNG to Europe from 2030, following the European Union’s decision to phase out Russian LNG by 2027.

Mitsotakis said the partnership would help strengthen Ukraine’s energy resilience while supporting Europe’s wider effort to limit Russian gas flows. “Greece is becoming an energy security provider for your country,” he told Zelenskiy.

The deal comes as Ukraine prepares for another winter marked by conflict-related disruptions to its power and gas networks, now in the fourth year of Russia’s full-scale invasion.