Nancy Pelosi visits Armenia after outbreak of deadly fighting with Azerbaijan.

LONDON — Speaker Nancy Pelosi arrived in Armenia on Saturday, leading a congressional delegation in a show of support for the small nation after an outbreak of fighting with neighboring Azerbaijan. The clashes resulted in the deaths of more than 200 people this week.

Ms. Pelosi said that she would meet with Prime Minister Nikol Pashinyan in the capital, Yerevan, as well as with other officials to convey “the strong and ongoing support of the United States” for Armenia and for a lasting settlement to the conflict between the two neighbors over the disputed territory of Nagorno-Karabakh.

Ms. Pelosi is the highest-ranking American official to visit Armenia since it gained independence 30 years ago with the end of the Soviet Union, her office said in a statement. She was accompanied by Representatives Jackie Speier and Anna G. Eshoo, both Armenian Americans from California, where there is a large Armenian community.

The visit, Ms. Pelosi’s latest effort to demonstrate the capabilities of the legislative branch, comes amid an eruption of war in Europe and points to the shifting balance of power around the former Soviet empire where the United States has long sought to build influence. The recent fighting in Nagorno-Karabakh is the worst since a full-scale war there killed thousands in 2020, and it has made Armenia appear particularly vulnerable.

Russia, Armenia’s longtime protector, has been weakened by an unexpectedly difficult war in Ukraine, and Azerbaijan has aggressively pushed Mr. Pashinyan to agree to a peace deal that would recognize Azerbaijani sovereignty over the disputed territory.