U.S. First Lady Jill Biden delivers remarks during a closed discussion and book reading event with U.S. military families and Blue Star families at the U.S. Coast Guard Air Station Miami in Opa-Locka Executive Airport, in Opa-Locka, Florida, U.S. February
U.S. First Lady Jill Biden delivers remarks during a closed discussion and book reading event with U.S. military families and Blue Star families at the U.S. Coast Guard Air Station Miami in Opa-Locka Executive Airport, in Opa-Locka, Florida, U.S. February 18, 2022. Reuters / MARCO BELLO

First lady Jill Biden will visit Romania and Slovakia from May 5-9 to meet with U.S. service members and embassy personnel, displaced Ukrainian parents and children, humanitarian aid workers, and teachers, her office said on Monday

On Sunday, celebrated as Mother's Day in the United States, Biden will meet with Ukrainian mothers and children who have been forced to flee their homes because of Russia's war against Ukraine, her office said.

The wife of President Joe Biden will meet with U.S. military service members at Mihail Kogalniceau Airbase in Romania on May 6, before heading to Bucharest to meet with Romanian government officials, U.S. embassy staff, humanitarian aid workers, and teachers working with displaced Ukrainian children.

The trip also includes stops in the Slovakian cities of Bratislava, Kosice and Vysne Nemecke, where Biden will meet with government officials, refugees and aid workers, her office said.

Biden's visit is the latest show of support for Ukraine and neighboring countries that are helping Ukrainian refugees by top U.S. representatives.

U.S. House of Representatives Speaker Nancy Pelosi met Ukrainian President Vlodymyr Zelenskiy on Sunday during an unannounced visit to Kyiv.

Jill Biden has also been closely engaged. In March she and her Polish counterpart, Agata Kornhauser-Duda, worked together to speed medical assistance to the frontlines of the refugee crisis sparked by Russia's invasion.

Russia describes its actions as a "special military operation."

The U.N. refugee agency last week said nearly 5.5 million people had fled Ukraine https://data2.unhcr.org/en/situations/ukraine/location?secret=unhcrrestricted since the start of the war on Feb. 24 and the number could grow to 8.3 million this year.

By April 27, more than 3 million Ukrainians had fled to Poland, with Romania taking in around 817,300 and Slovakia absorbing nearly 372,000, according to U.N. data.