What you are beginning to read is a kind of diary of a man, a soldier, who was one of the first to arrive at Chernobyl after the nuclear disaster. His name is Andrii Kulish, he is 67 years old, and all the photographs you will see in this piece are his, as are the words and the stories. This is his testimony, shared with Expresso, 40 years after he was called to lead the 7th company in the cleanup of the city: “We expected to be able to master the power of the atom with simple laundry detergent.”