Dunkirk: The History Behind the Major Motion Picture. Joshua Levine

allowed into suburban homes, where he would demonstrate his vacuum cleaner on samples of sand that he carried with him. ‘It was pretty soul destroying,’ he says, ‘and if it was bad weather, or if Electrolux salesmen had done your territory, it was very difficult to get a demonstration anywhere.’

      But perhaps the most modern job under way in Britain was being carried out by a recent Jewish immigrant from Poland. Joseph Rotblat was a physicist working in the field of radioactivity who arrived in Britain in April 1939. Earlier in the year, he had read about Frisch and Leitner’s discovery of nuclear fission, and it had occurred to him that a staggering release of energy might be possible if a chain reaction could be triggered in a very short time. Initially, he pushed this idea – for an atomic bomb – out of his mind, so concerned was he by the horrifying prospect of creating what would now be called a weapon of mass destruction. But by the time he arrived in Britain, Rotblat had figured that the Nazis might be working on a bomb, making it his duty to share his thoughts with British scientists. ‘Perhaps, in my own mind,’ he says, ‘I was the first person to develop the concept of the nuclear deterrent.’ As a result, Rotblat approached Sir James Chadwick, the discoverer of the neutron. Chadwick approved of the idea, and granted Rotblat two assistants. The dark march of atomic progress had begun.

      But for all the period’s changes, the most anticipated and dreaded was the outbreak of war. Many young men began volunteering to join the British army, while limited conscription was introduced for twenty- and twenty-one-year-olds in April 1939. In the last war, volunteers had joined up enthusiastically, keen to fight for King and Country, eager to put the Kaiser in his place. A quarter of a century on, emotions were more muted. Nevertheless, the 1939 generation showed itself, on balance, to be quietly dutiful and aware of the need to confront Germany.

      But there were many who joined up oblivious to the political situation, unconcerned with any sense of duty. Thomas Myers, the young Durham coal miner with whom we began this chapter, joined the Territorial Army in early 1939, because, he says, it was the fashionable thing to do. ‘Everybody wanted to be in the Territorials, it was chaotic there were that many joining.’ Yet he had no interest in politics. ‘I didn’t know war was coming,’ Thomas says, ‘I didn’t know anything about Hitler.’

      When pressed, he adds that he joined in order to get the occasional weekend away, and evening out. To young men trapped by work and community, the army offered a break from monotony and social restrictions. It offered adventure. George Wagner, the keen dancer from Erdington, says, ‘We joined and it was something to do. On top of that, you got paid a bounty, and on top of that, once a year, you used to go away for a fortnight training. It was great.’

      Anthony Rhodes, a young Royal Engineers officer, was given a long-serving army batman (a servant). Rhodes describes this man as seeking a niche, a quiet place where he could rest in indefinite seclusion. There were peacetime soldiers, in other words, who were attracted to the army by its lack of adventure.

      And to some, the army provided a solution. Thomas Lister, a young man from Durham, had not been able to settle down to anything. At the age of fourteen, he had been sent by his father for an interview with an electrical engineer. He had taken one look at the workshop floor – ‘it looked like the jaws of hell’ – before walking away. He became an errand boy for Burton’s Tailors before becoming ‘a bit fed up with it’. After that, he had a spell as a wholesale fish salesman. But without a calling, or any particular direction, he would find the enforced discipline and comradeship of the army attractive. And it solved the problem of what he would do with his life – temporarily, at least.

      Germany

      To be young – and racially pure – in Adolf Hitler’s Germany was to be important. In Hitler’s eyes, the country’s future greatness depended on its young people – but it wasn’t their intelligence or initiative that he looked to encourage. Clever weaklings were not going to improve the country’s situation. Tough, healthy and strong-willed boys and girls were needed. ‘The weak must be chiselled away,’ he said in 1938, ‘I want young men and women who can suffer pain. A young German must be swift as a greyhound, as tough as leather, and as hard as Krupp’s steel.’ And though it would never be publicly admitted, they must also be brainwashed to adopt his ideology. Pure by blood, stripped of free will, they were going to make Germany great again.

      In 1938, over 80 per cent of young Germans were members of the Hitler Youth organisation. Childhood ended for this generation at the age of ten with admission to the organisation’s junior branch. From that moment on, children became the political soldiers of the Fatherland. Boys and girls had separate sections, preparing them for lives as soldiers, housewives and bearers of the Nazi worldview.

      The Hitler Youth even had an internal secret police – an infant Gestapo – responsible for rooting out disloyalty and denouncing members. In one case, Walter Hess reported his own father for calling Hitler a crazed maniac. The father ended up in a concentration camp while Walter was promoted for showing admirable vigilance. Hitler, meanwhile, was being worshipped as a secular god by boys and girls who would recite an incantation based on the Lord’s Prayer:

      Adolf Hitler, you are our great Führer. Thy name makes the enemy tremble. Thy Third Reich comes, thy will alone is law upon the earth. Let us hear daily thy voice and order us by thy leadership, for we will obey to the end and even with our lives. We praise thee! Heil Hitler!

      Melita Maschmann was a member of the League of German Girls, the female branch of the Hitler Youth. Aged eighteen in 1938, she began working as a press officer for the organisation. In November, after attending a rally in Frankfurt, the head of the local SS asked her if she wanted to come with him. Something exciting, he said, was going to happen that evening. Tired, she decided against it. The next morning, she could see broken glass and smashed furniture strewn everywhere. Finding a policeman, Melita asked what had happened. He told her that this was a Jewish area, and that ‘the National Soul had boiled over’.

      Melita was witnessing the aftermath of Kristallnacht – Crystal Night – named for the glittering glass shards strewn across the streets. Instigated by the Nazi leadership, mobs of stormtroopers and Hitler Youth set out to vandalise synagogues and Jewish-owned properties throughout Germany and German-controlled areas. Michael Bruce was an English newspaper correspondent in Berlin. He followed a mob as it moved towards a synagogue. Before long, the building was on fire, and people cheered as they ripped wood from the façade to feed the flames inside. The crowd continued to a nearby Jewish shop. Men and women, howling with exhilaration, started hurling concrete blocks through the doors and windows, fighting to get inside to loot the stock. Bruce noticed an old Jewish woman being dragged from her house, and ran to help another reporter pull her free. The mob then moved off towards a hospital for sick Jewish children, where the leaders – many of them women – attacked hospital staff as the young patients were forced to run barefoot over broken glass. Bruce described the spectacle as ‘one of the foulest exhibitions of bestiality I have ever witnessed’.

      Riots and attacks erupted on an astonishing scale. Bernt Engelmann was a seventeen-year-old living in Düsseldorf, about to join the Luftwaffe. As young thugs smashed up an apartment owned by a Jewish family in his building, he stood outside wondering whether to confront them. The police were nearby but were refusing to interfere. Eventually, Bernt ran inside the apartment and tried to sound authoritative.

      ‘You’re in charge here?’ he barked at the ringleader. ‘You’re through here, right?’

      ‘That’s correct, we’re finished here.’

      To Bernt’s relief, the youths left. But throughout the attack a little girl – the daughter of the family – had been hiding inside the apartment. Relieved that the youths hadn’t seen her, Bernt went looking for her parents while his mother put her to bed with a sleeping pill. Finding the parents on the street, he reassured them that their daughter was safe, and persuaded them to spend the night with non-Jewish friends – who embraced them wordlessly as they hurried into their apartment.

      As Bernt returned to his building, he watched the body of a Jewish doctor being brought out of a house. ‘He put up a good fight,’ said a bystander. As he crunched his way over broken glass and discarded