FILE PHOTO: Andriy Yermak, Head of the Office of the President of Ukraine, attends telecommunications company Kyivstar's IPO at the Nasdaq MarketSite in New York City, U.S., August 29, 2025. REUTERS/Kylie Cooper/File Photo

KYIV (Reuters) -A Ukrainian delegation led by Prime Minister Yulia Svyrydenko will visit Washington for talks on strengthening Kyiv's defence and energy resilience, President Volodymyr Zelenskiy's chief of staff said on Monday.

Ukraine is seeking more U.S. support for its war effort against Russia, as Kremlin forces step up strikes on energy facilities across the country and press forward on the battlefield.

Writing on X, Andriy Yermak said the two sides would also discuss stronger sanctions against Russia, a measure Zelenskiy has said is critical to forcing Moscow to the negotiating table.

"The ultimate goal remains unchanged – a just and lasting peace!" he wrote.

The delegation will also include National Security and Defence Council Secretary Rustem Umerov.

(Reporting by Dan Peleschuk, Editing by William Maclean)