The story of the attack on the Mohne and Eder dams in the Ruhr has been recounted many times before but not until now has it been told from the German side. The author has spent over a third of a century studying the raid and its consequences, collecting an archive of documents and photographs, and producing documentary films on the attack. His book Wasserkrieg , published in Germany in 1992, has now been translated and adapted for this After the Battle edition in the Through the Lens series.