Victory Day, or День Перемоги (Den' Peremohy) in Ukrainian, is celebrated on May 9th in Ukraine and other countries to commemorate the victory over Nazi Germany in World War II. This day is observed with various events including parades, ceremonies, and gatherings.

Regarding children's involvement, it's common for educational institutions and families to mark the occasion with age-appropriate activities that help children understand the historical significance of the day. These might include:

1. School assemblies or presentations about the history of World War II.

2. Art projects depicting peace and unity.

3. Visits to war memorials or museums.

4. Family discussions about family history related to the war period.

It's important to note that while Victory Day is a somber and reflective day, it's also an opportunity for education and remembrance in a way that respects the complexity of the history without glorifying war. Children may participate in these activities as part of their learning and cultural experience.