Now in its third month, the Ukraine/Russia conflict has shown few signs of slowing down.

House Speaker Nancy Pelosi led a congressional delegation to meet with Ukrainian President Volodymyr Zelenskyy in Kyiv.

Pelosi is now the highest-ranking U.S. official to visit Ukraine during the war, with the surprise visit adding to the growing momentum behind the West’s support for the country’s fight against Russia.

The trip comes as Moscow’s refocused military campaign in Ukraine’s east struggles to make significant gains, and as Kyiv’s allies step up with increasing military supplies, with both sides appearing to be settling in for a prolonged conflict.

“We are visiting you to say thank you for your fight for freedom,” Pelosi said during a meeting with Ukrainian officials, according to a video posted to Zelenskyy’s official Telegram account early Sunday. “Your fight is a fight for everyone, and so our commitment is to be there for you until the fight is done.”

Zelenskyy said he was “very grateful for this powerful signal of support.”

“This shows that the United States today is a leader in strong support for Ukraine during the war against the aggression of the Russian Federation,” Zelenskyy said.

Those accompanying Pelosi on the trip, which had not been previously announced, included Reps. Jason Crow, D-Colo., Jim McGovern, D-Mass., Gregory Meeks, D-N.Y., and Adam Schiff, D-Calif.

The trip is the second major visit from American officials in the span of a week. Secretary of State Antony Blinken and Secretary of Defense Lloyd Austin met with Zelenskyy last Sunday and made fresh promises of military and diplomatic support.

The U.S. and many countries in Europe have pledged to send a variety of defensive weapons to help Ukraine hold off Russian advances.

Crow, a veteran and a member of the House intelligence and armed services committees, said he came to Ukraine with three areas of focus: “Weapons, weapons and weapons.”