Jill Biden, the first lady of the United States, will travel to Romania and Slovakia from May 5 to 9 to meet with US military and embassy personnel, displaced Ukrainian parents and children, humanitarian aid workers, and teachers, according to her office.

Biden will meet with Ukrainian mothers and children who have been forced to flee their homes as a result of Russia’s war against Ukraine on Sunday, which is Mother’s Day in the United States, according to her office.

On May 6, Vice President Joe Biden’s wife will meet with US military personnel at Mihail Kogalniceau Airbase in Romania before travelling to Bucharest to meet with Romanian officials, US embassy personnel, humanitarian aid workers, and teachers working with displaced Ukrainian children.

Biden will meet with government officials, refugees, and aid workers in the Slovakian cities of Bratislava, Kosice, and Vysne Nemecke, according to her office.

Biden’s visit is the latest high-level US support for Ukraine and neighbouring countries that are assisting Ukrainian refugees.

During an unannounced visit to Kyiv on Sunday, US House Speaker Nancy Pelosi met Ukrainian President Vlodymyr Zelenskiy.

Jill Biden has been involved as well. She and her Polish counterpart, Agata Kornhauser-Duda, collaborated in March to get medical aid to the front lines of the refugee crisis sparked by Russia’s invasion.

Russia’s actions are referred to as a “special military operation.”

Since the start of the war on Feb. 24, nearly 5.5 million people have fled Ukraine, according to the United Nations Refugee Agency (UNHCR), with the number expected to rise to 8.3 million this year.

According to United Nations data, more than 3 million Ukrainians had fled to Poland by April 27, with Romania taking in around 817,300 and Slovakia taking in nearly 372,000.