Caius Becker's book "German naval saboteurs in the Second World War" is dedicated to the activities of units "K" - sabotage and assault formations of the German Navy.

The author characterizes in detail the main sabotage and assault weapons and tactical principles that lay in the basis of their use, talks about the most famous sabotage operations of his unit - the fight against the Allied invasion fleet in the Bay of the Seine and in the Pas-de-Calais Strait, the blowing up of bridges across the Orne River and near Nijmegen, the destruction of the lock in the port of Antwerp, etc. The final chapter of the book gives characteristics of numerous samples of sabotage and assault weapons that were developed by German designers, but did not have time to find combat use.