A written account of the infamous raid on the German dams by 617 Squadron of the RAF during World War Two.
The book covers the initial planning and testing of the new weapon and tactics and then leads the reader into a chronological listing of the mission by aircraft, covering the take off, navigation, actual dropping of the weapon and return to base.
It also covers the results of Operation Chastise and the affects on the war and local area.
A good account of the operation, and references other sources such as books and movies and tries to clarify points made in them.
The timeline became a little confusing due to the sheer number of names and places but covers the operation well.
Recommended reading.

The Dambuster Raid In Detail

It has been 80 years since the Royal Air Force launched an airstrike against three dams in the German Ruhr. Flown at low level, it was one of the most daring, and successful, air raids of World War II

“Breaking the German Dams: A Minute-By-Minute Account of Operation Chastise, May 1943,” by Robert Owen, is the latest effort to document the raid. It may be the most successful.

Owen uses the perspective of time to produce what is probably the most comprehensive account of the Dambusters raid ever written. This book covers all aspects of the raid, from its conception through its execution. It follows what happened to the participants – on both sides – after the raid was over.

Owen examines how the raid was conceived, how it was planned, and how the 617 Squadron, which executed the raid was assembled and trained. He presents the obstacles faced by those advocating for it, right up until the first Lancaster on the mission left for Germany. Skeptics included Air Marshall Arthur Harris, who led Bomber Command.

The heart of the book is a minute-by-minute account of the raid. Owen follows every aircraft from the time it left the ground until the moment it returned to Earth. He traces both aircraft that crashed and those which returned safely. He recounts the fate of every participant.

He provides the German perspective of the raid, including those involved in the air defense of Germany: crews manning the antiaircraft guns and those participating in civil defense along the route the bombers took. He recounts what happened to the civilians downstream of the two dams successfully breached by the raid.

He delivers a dispassionate assessment of the raid’s results. He shows that from a cost-benefit perspective the raid delivered results far in excess to the costs incurred in mounting it, both in material and lives. He also shows it played a significant part in Harris’s Battle of the Ruhr, delivering a better return than some of the 1000-plane raids mounted. At the same time, he shows how the results could have been improved significantly with a few minor changes.

“Breaking the German Dams” is worth reading for anyone with an interest in World War II’s air war. It is a gripping account of the raid. It also shows how time adds perspective. Information unavailable immediately after the War but now accessible added significantly to Owen’s account.

“Breaking the German Dams: A Minute-By-Minute Account of Operation Chastise, May 1943,” by Robert Owen, Naval Institute Press, 2023, 224 pages, $45.46 (Hardcover), $29.99 (ebook)

This review was written by Mark Lardas, who writes at Ricochet as Seawriter. Mark Lardas, an engineer, freelance writer, historian, and model-maker, lives in League City, TX. His website is marklardas.com.

Thanks to the publishers and Netgalley for a copy of this book in exchange for a review.

As a child I grew up in a house where my Dad was fascinated by the story of the men of 617 Squadron - we had books, we had paintings, he helped a friend with research for a book and I have no idea how many times I have seen the film.

It was such a privilege to read this book in this the 80th anniversary year of the Dams Raid.

This is wonderful new book on the already well covered story i.e. the bombing of the German damns in the Ruhr valley during WW2. Dr Owen has thoroughly researched the subject and brings together multiple sources to tell the story from conception through to execution. The latter part being a minute by minute timeline of the raid as told by those who took part and from official records from the RAF. The Luftwaffe and the German ground forces.
The general story is well known of how Barnes Wallace came up with a “ bouncing bomb” designed to evade protective torpedo nets and land next to the damn wall detonating once it had sunk to a depth of 60 ft focusing the percussive blast to blow out the very thick damn walls. Dr Owen takes you through this design phase and early trials and the formation of the special squadron of Avro Lancasters under the leadership of Wing Commander Guy Gibson where the skills of low level nighttime flying and precision bombing are quickly developed. The timeline of the raid itself and the anecdotes from the air crews is very enlightening and you understand why the casualties were so high on such a raid literally flying at treetop height at nighttime with power lines, church steeples and sand dunes coming at you out of the dark traveling at 300mph…frightening!
There are many nuances to the story which I had not heard before and I commend the author for his skill in being able to bring in a lot of detail without it being too repetitive nor losing the momentum of what is an exciting story.
The final part of the book is an attempt to answer the question of whether it achieved its aim and whether it was worth the sacrifice. Again I commend the Author for deftly avoiding a debate of the morality of bombing targets with such a high civilian casualty rate. This is not the book for such a debate nor should there be any deflection from the bravery and sacrifice of those who took part in the raid. Instead Owen focuses on the reported facts on the damages caused by the raid, the efforts and resources required to rebuild and reinstate and the disruption to the war effort and psychological blow to morale.
I would thoroughly recommend this book to anyone with an interest in WW2 history or just some who would like to get a feel for what it was like flyingnightime raids over Germany.
Thanks to Netgalley and the publishers for providing access to this book.

Unsurprisingly, the 80th anniversary of the Dambusters Raid has led to the appearance of a number of new books on this already well-documented operation. Max Hastings offered his contribution last year and this year sees Dr Owen’s masterly account published. As a child of the immediate post war years I had become aware of The Dambusters from the film, starring Richard Todd and Michael Redgrave. At school, too, we learnt the words that accompanied the iconic Dambusters March from the film.
Given all that has already been written about the dams raid I approached this book with some trepidation. Could there really be a new angle or a different approach that justified yet another book. Prospective readers, who may share these misgivings, are likely to experience the same relief that I felt as I began Dr Owen’s quite excellent account. For those who want to understand the genesis of the plans for the attack on the dams and how both the plan and the technology were developed and refined this book fits the bill. No corners are cut and the reader feels to be almost watching the planned raid take shape. Dr Owen also steers a necessary and careful path that pays proper tribute to the courage and heroism of the crews, whilst avoiding any ‘gung ho’ chauvinism; the inevitable casualties experienced as a result of the sudden, catastrophic inundation below the Möhne and Eder dams are also treated respectfully. The author takes care in his final reckoning to give a carefully balanced analysis that considers the essential question of ‘was it worth it?’ In doing so, Dr Owen explains that subsequent international agreements have outlawed attacks in civilian infrastructure. This approach also avoids the unhelpful approach sometimes seen that applies a current legal and/or ethical framework to historical events. Finally, it is worth commenting briefly on the device used in this book when describing the raid using a chronology. Whilst this may suffer from interrupting a narrative flow it does, nevertheless, illustrate what an extensive operation this was with many elements that needed to interlock if it were to be successful.
Strongly recommended.

I thought that I was pretty conversant with the facts and figures behind Operation Chastise. How wrong could I be!
The author has undertaken massive research into the 617 Squadron’s dam’s raid and has brought to light many previously unpublished, very detailed facts from both the RAF and the German perspectives. The book gives a minute-by-minute account of the raid, from the pre-operational briefings through to the final return of the survivors.
I was surprised by the several inconsistencies in the various eyewitness accounts, but these were totally understandable in the fog of war and fear of violent death. Interestingly many of the aircraft did not fly their pre-planned routes due to low-level navigational issues, but were able to find their way to their targets.
As we are all aware, the overwhelming bravery and skill of the crews of the crews plus the leadership of Guy Gibson made this operation an amazing success. But we must also take into account the tenacity of Barnes Wallis and the hard-working ground crews who made it possible.
I have a particular interest in the dam raids, my mother was a WAAF who worked directly for Gibson at that time. My father flew Lancasters with 57 Squadron, who were also stationed at Scampton during this period. His squadron couldn’t understand why 617 Squadron weren’t flying nightly operations into Germany, and why they were having such a ‘cushy’ life. The day following the raid, my father and his colleagues were shocked by the significant losses of aircrew from their sister unit.
A brilliant book and thoroughly recommended to WW2 buffs.

A truly interesting story on raid by the British on the German dams in WW2. The story takes you through the planning, development, execution of the mission and the results. The men who participated in the raid were inspirational and what they endured was heartbreaking. A great read!

Thank you to #NetGalley for the ARC in exchange for my honest opinion.