Reunification Day is a national public holiday in Vietnam that commemorates a significant event in the country's history: the end of the Vietnam War and the reunification of North and South Vietnam in 1975. Known as 'Ngày Thống Nhất' in Vietnamese, it is celebrated every year on April 30. It marks the fall of Saigon, the capital of South Vietnam, to the North Vietnamese Army, effectively ending the decades-long conflict.

This holiday is marked by a variety of events and activities around the country. Parades, fireworks, and public demonstrations of Vietnamese culture and history are common. The streets are often decorated with national flags and pictures of the national heroes who played a vital role in the reunification of Vietnam. It is also a day for family gatherings and feasting. Many people travel to their hometowns and spend time with their loved ones.

Despite its celebratory nature, Reunification Day also carries a reflective tone for many Vietnamese people. It is a time to remember the lives lost during the war, the sacrifices made, and the hardships endured by the nation. The holiday serves as a stark reminder of the country's turbulent past, but also a symbol of its resilience and unity. This day plays a significant role in promoting patriotism and national identity among Vietnamese citizens.