In Ukraine, December 14 is dedicated to Chernobyl Liquidators Day, a day to honor the military and civilian workers who risked everything to manage the aftermath of the 1986 Chernobyl nuclear accident. This date marks the completion of the sarcophagus that sealed off the damaged number 4 reactor. The holiday was established by President Viktor Yushchenko in 2006, following initiatives from Ukrainian NGOs and the Ministry of Labor and Social Policy. It pays tribute to the bravery and commitment of more than 500,000 recovery workers—firefighters, medical teams, engineers—who played crucial roles in the disaster response. Various events hosted by government bodies and NGOs acknowledge the sacrifices and contributions of these liquidators, many of whom endured serious health issues from radiation exposure. This day is separate from the International Chernobyl Disaster Remembrance Day, observed on April 26 to honor those who lost their lives due to the catastrophe.