From the publisher’s website:

Nearly forty years have passed since the explosion at the Chernobyl nuclear power plant – the most severe nuclear accident in history and one of the gravest man-made disasters ever recorded. Countless books, documentaries, and films have examined the catastrophe and its aftermath. Yet, despite this abundance of material, a crucial aspect of the story has remained largely overlooked in English-language accounts: the immense contribution of Soviet aviation to the response effort.