From Defeat in the West, by Milton Shulman (Secker & Warburg, 1947; Dutton, 1948; Arcadia, 2017), Kindle Loc. 4344-67:
After five years of nervous tension, bad food, and hard living conditions, the Wehrmacht found itself swamped with soldiers complaining of internal gastric trouble. Some of these were real, others were feigned. It was difficult to check.
As defeat became more and more imminent and life at the front more dangerous and more uncomfortable, the rise in the number of men reporting themselves as chronic stomach sufferers became alarming. With the staggering losses in Russia and France, it was no longer possible to discharge this huge flood of groaning manpower from military service. On the other hand their presence in a unit of healthy men was a constant source of dissatisfaction and unrest, for they required special food, constantly asked to be sent on leave, continually reported themselves to the doctor, and grumbled unceasingly about their plight. It was thus decided by the Supreme Command to concentrate all these unfortunates into special Stomach (Magen) battalions where their food could be supervised and their tasks made lighter. It was originally intended to use these troops for rear-area duties only, but as the need for additional men became increasingly critical these units were sent forward for front-line duty as well.
On Walcheren Island, following the Allied invasion, it was decided to replace the previous normal infantry division with a complete division formed from these Stomach battalions. By the beginning of August 1944, the transformation was complete. Occupying the bunkers of the polderland of Walcheren Island and pledged to carry on to the very end were stomachs with chronic ulcers, stomachs with acute ulcers, wounded stomachs, nervous stomachs, sensitive stomachs, dyspeptic stomachs, inflamed stomachs — in fact the whole gamut of gastric ailments. Here in the rich garden country of Holland, where white bread, fresh vegetables, eggs and milk abounded, these men of 70 Infantry Division, soon nicknamed the ‘White Bread Division,’ awaited the impending Allied attack with their attention nervously divided between the threat of enemy action and the reality of their own internal disorders.
The man chosen to lead this formation of convalescents through their travail was the mild-looking, elderly Lieutenant General Wilhelm Daser. His small, peaked nose, his horn-rimmed glasses and his pink, bald head effectively hid his military identity. Only a firm, loud voice accustomed to giving orders betrayed it. Like the other fortress commanders he was chosen for his final military role because he could easily be spared, not because he had any particular qualifications for the task. The tremendous wastage of senior officers incurred by the Wehrmacht in Russia and North Africa was the prime reason for Daser’s being called out of semi-retirement in February 1944, to take over a static coastal division in Holland. His last active field command had been in 1941 when he had been sent back to Germany because of heart trouble. The years between had been spent as a military administrator of civilians in occupied territory. Now, at sixty years of age, he had neither the enthusiasm, the zeal nor the ability to make of Walcheren a memorable epic of German arms — but neither had most generals of the Wehrmacht in the declining months of 1944.