K-men and midget submarines
An excellent book and a 'must' for those interested in naval diving and/or underwater sabotage. It procvides a rare insight into the complete midget submnarine program, particularly those that never became operational. This book confirms the similarity of underwater saboteurs on both sides during World War 2. Pity about the use of the non-naval word 'frogmen' , but I guess that is the most commonly used word.