Alistair MacLean Sea Thrillers 4-Book Collection: San Andreas, The Golden Rendezvous, Seawitch, Santorini

The same charge of ruthlessness, of course, could have been levelled against Allied submariners – to a lesser extent, admittedly, it is true, but that was only because they had a much more limited choice of targets.

The overall U-boat picture is false. Ruthless Nazis there may have been among the crews but they were a tiny minority: the men were motivated principally by an intense pride in the traditions of the Imperial German Navy. Certainly there were acts of brutality by individual U-boat commanders but there were also acts of humanity, gallantry and compassion. What was undeniable was the immense personal courage and spirit of self-sacrifice of those men. It has to be remembered that, out of a total of 40,000 U-boat submariners, 30,000 died, the most shocking casualty rate in the history of naval warfare. While the actions of those men are not to be condoned, the men themselves are not to be condemned. Ruthless they were – the nature of their job demanded it – but they were brave beyond belief.

Such then were the conditions in which the men of the Merchant Navy had to live and die: such, too, were their enemies, who sought, implacably, to destroy them. The odds against the health and lives of the merchantmen surviving, respectively, their living conditions and the attentions of the enemy were high indeed: theirs was a classic no-win situation. In the circumstances it was an astonishing and commonplace fact that men who had survived two or three torpedoings and sinkings would immediately, on their return to Britain, seek out another ship to take them to sea again. By definition, those men were non-combatants but their endurance, tenacity and determination – they would have laughed at words like gallantry and courage – matched those of the men who hunted them down.