International Chernobyl Disaster Remembrance Day is observed every year on 26 April to remember the victims of the Chernobyl nuclear disaster that occurred in 1986 in Ukraine. This tragic event became one of the worst nuclear accidents in history, causing loss of lives, health problems, and environmental damage. The day honors the bravery and sacrifice of firefighters, workers, and rescue teams who risked their lives to control the disaster and protect others. It also spreads awareness about the importance of nuclear safety, environmental protection, and global responsibility. This Remembrance Day encourages the world to learn from the past and work together for a safer future.