On December 14, ceremonial event was held at Chornobyl NPP site to honour those who participated in mitigation of the consequences of Chornobyl NPP accident. Annually, this day reminds us of the courage and professionalism of more than 600 thousand liquidators - servicemen, militiamen, rescuers, employees of state enterprises and institutions, who jeopardizing their lives succeeded in overcoming one of the largest man-made disasters of the 20th century.