On the 20th January 1942, a number of senior Nazis met at the Wannsee Conference where they discussed what was referred to as the Final Solution to the Jewish Question. SS-Obergruppenführer Reinhard Heydrich called the meeting, in which he outlined the deportation of European Jews to extermination camps in Poland where they would be systematically murdered.

Six months earlier, on the 31st July 1941, Hermann Goering had ordered Heydrich as his second-in-command to submit plans “for the implementation of the projected final solution of the Jewish question”. Heydrich was a trusted member of the Nazi elite, and had been referred to by Hitler as “the man with the iron heart”. He had already helped to organise Kristallnacht, established Jewish ghettos in Nazi-controlled territories, and command the Einsatzgruppen that were responsible for millions of Jewish deaths prior to his planning of the Final Solution.

Heydrich originally planned for the Wannsee Conference to take place on 9th December 1941, but it was postponed due to the USSR’s counter-offensive in the Battle of Moscow and the entry of the USA into the war. Fifteen representatives from a variety of government ministries attended the delayed meeting on the 20th January instead.

By this time hundreds of thousands of Jews had already been killed in the east, and the planning and construction of extermination camps had already begun. The meeting was, therefore, more to ensure coordination between the various government agencies in implementing the deportations.

Minutes from the meeting survive as what is known as the Wannsee Protocol, although the language was edited so that mass extermination was never explicitly recorded.

In November 1923 Hitler had led an attempted coup against the Weimar Government by trying to seize power in the Bavarian city of Munich. The putsch failed and Hitler was found guilty of treason in the subsequent trial. Sentenced to five years imprisonment, he was sent to the Festungshaft prison in the Bavarian town of Landsberg am Lech.

Hitler’s ‘fortress confinement’ provided him with a reasonably comfortable cell in comparison to conventional facilities, and meant that he was able to receive mail and have regular visitors. The discovery in 2010 of more than 500 documents relating the Hitler’s imprisonment show that more than 30 people were able to visit him on his birthday on 20 April 1924, just 19 days into his sentence.

Imprisonment provided Hitler with the opportunity to dictate his autobiography, Mein Kampf, to his deputy Rudolf Hess. It was in this book that Hitler laid out his blueprint for the future of Germany. Although it gained only modest success when it was first published, Winston Churchill later claimed that if world leaders had read it they could have better anticipated the scale of Nazi domestic and foreign policy.

In a memorandum dated 18 September 1924, the Landsberg warden Otto Leybold described Hitler as “sensible, modest, humble and polite to everyone – especially the officers of the facility”. He was released on 20 December 1924 after serving on nine months of his five-year sentence and soon set about rebuilding the Nazi Party which had been banned in Bavaria as a result of the Beer Hall Putsch. The ban was lifted less than two months after Hitler’s release.

On the 25th November 1936, Nazi Germany and the Empire of Japan signed the Anti-Comintern Pact. Although directed against the Communist International, the international organisation that sought to create a worldwide communist republic, the treaty was in reality specifically against the Soviet Union.

The idea for an anti-Communist alliance had first been suggested in late 1935, as Hitler and Mussolini sought to present themselves as upholding traditional values in the face of Soviet Communism. However, the plan stagnated while the German foreign ministry weighed up the pros and cons of an alliance with the arch-enemy of their traditional Chinese ally.

By summer 1936 the military were an increasingly dominant force in Japan’s government. Meanwhile Europe was beginning to fear the implications of the Franco-Soviet Alliance that went into effect at the end of March. As a result Hitler pushed ahead with the Pact in the hope of securing an Anglo-German alliance as a result.

The Pact didn’t result in Hitler’s desired alliance with Britain, but did later expand to include Italy. Mussolini’s decision to join with Germany and Japan on the 6th November 1937, two years after the collapse of the Stresa Front with France and Britain, led to the formation of what was to become known as the Axis Alliance.

The Anti-Comintern Pact specifically stated that the signatories would not make any political treaties with the Soviet Union. However, on the 23rd August 1939, Germany signed the Nazi-Soviet Pact, also known as the Molotov-Ribbentrop Pact. This caused a rift with Japan, but the relationship began to heal following the later Tripartite Pact in September 1940.

Einstein, who was Jewish, was undertaking a visiting professorship at the California Institute of Technology in Pasadena when Adolf Hitler was appointed Chancellor on 30 January 1933. With the Nazis expanding their power in Germany, Einstein chose not to go home when he returned to Europe in March. When his ship docked at the Belgian port of Antwerp on 28 March he renounced his German citizenship by handing in his passport at the German Consulate.

While the Nazis seized Einstein’s cottage and converted it to a Hitler Youth camp, the government barred Jews from teaching at universities and the German Student Union burned his books. With a bounty on his head, Einstein stayed in Belgium for a few months before moving to Britain where he was guarded by his friend, naval officer Commander Oliver Locker-Lampson.

While a refugee in Britain, Einstein lobbied foreign governments and universities to find employment for former German Jewish scientists. Many places were found around Europe, with over 1,000 German Jewish scientists being placed in Turkish universities alone, but Einstein himself was refused British citizenship and instead accepted an offer from the Princeton Institute for Advanced Study in New Jersey. He departed England on 17 October 1933.

Although Einstein initially intended to only stay in the United States for a short time, in 1935 he chose to seek American citizenship, which he gained in 1940. By this time he had warned President Roosevelt about the danger of Hitler developing nuclear weapons, and encouraged the United States to begin its own research.

On September 12th 1919, Adolf Hitler officially joined the German Workers’ Party (DAP). At the time no membership cards were issued but, when they made available in January 1920, Hitler was given membership number 55 although he later claimed in Mein Kampf to have been the seventh. Hitler was actually the seventh executive member of the Party’s central committee. His membership card actually identified him as number 555 since the party began its numbering at 500 in order to make it appear to have more members than it really did.

At the time Hitler was working as an army intelligence officer who had been tasked with infiltrating the German Workers’ Party. However, he was attracted to the angry rhetoric of the founder – Anton Drexler – and during a party meeting in the first floor restaurant of the Sterneckerbräu beer hall in Munich on the 12th September put forward a passionate argument denouncing the views of another speaker. In Mein Kampf Hitler describes Drexler as being impressed by his oratorical skills, which resulted in him being invited to join the party.

Despite members of the army not being permitted to have membership of a political party, Hitler was given special permission to join the DAP. However, before long his role in the party began to eclipse his role in the military and he was discharged from the army on the 31st March 1920 after which he began working full-time for the renamed National Socialist German Workers Party.

The Sterneckerbräu building still exists in Munich, although the beer hall has gone and it is now used for residential and commercial purposes.

The Nazi German Luftwaffe launched the first of 57 consecutive days and nights of bombing raids on London in what became known as the Blitz.

The Luftwaffe had been attacking British targets in the Battle of Britain since June 1940. This was an attempt to achieve air superiority over the RAF to enable a land invasion by the Nazis or force the British government to sue for peace.

Having failed to defeat the RAF in the Battle of Britain, Hitler and Göring instead ordered a policy designed to crush civilian morale. The first raid of the Blitz took place on 7 September in which over 337 tons of bombs were dropped on London, and 448 civilians were killed. The earlier decision by Hugh Dowding, Air Officer Commanding Fighter Command, to focus on day fighter defences meant that Britain was woefully unprepared for German bomber attacks at night when they became the official policy on 7 October.

The Luftwaffe used technology known as beam navigation to locate their target, in which the crews had to detect converging radio signals from two or more ground stations. Britain countered this by transmitting false navigation signals that were designed to send the incoming crews off course. They also created a number of dummy targets such as diversionary airfields and industrial targets that used lighting effects to simulate factories and transport.

By the end of the Blitz on 11 May 1941, approximately 41,000 tons of bombs had been dropped by the Luftwaffe and more than 40,000 civilians had been killed. Yet, despite the psychological pressures of the situation in which class divisions and anti-Semitism often surfaced, British society continued to function, morale remained high and British industrial production actually rose.

On the 25th August 1944, the Nazi German garrison in Paris surrendered the city to the Allies. Having been rules by the Nazis for over four years, the liberation of the capital was not a priority for the forces under General Dwight D. Eisenhower. Furthermore, the Allied commanders were unwilling to risk the destruction of the city since they were aware that Hitler had said it, “must not fall into the enemy’s hand except lying in complete debris”.

A series of actions by the Nazis against French political prisoners and members of the resistance sparked mass civil unrest that began on the 15th and climaxed on the 18th August with a general strike. Aware that the US Third Army led by General Patton was close to Paris – but unaware that they did not intend to attack the city – the Nazi military governor ordered explosives to be placed at strategic points.

When the German military withdrew down the Champs Élysées on the morning of the 19th, the French Forces of the Interior – the French resistance – seized the opportunity to begin a full-scale uprising. Barricades were erected the next day, with fighting reaching a peak on the 22nd. It was this that persuaded Eisenhower to change his plan and allow Allied troops to enter Paris.

Over 800 resistance fighters died before the Free French 2nd Armoured Division arrived to assist the uprising just before midnight on the 24th August, led by Captain Raymond Dronne. On the 25th, the US 4th Infantry Division entered the city. Von Choltitz, the German military governor, surrendered later that day.

On 23rd August 1939, Vyacheslav Molotov and Joachim von Ribbentrop – the Soviet foreign minister and the German foreign minister – signed the Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics, otherwise known as the Nazi-Soviet Pact. Outwardly it was a guarantee that neither side would fight against the other in war, but a ‘secret protocol’ also outlined how Eastern Europe would be divided between the two countries. This agreement cleared the way for the Nazi invasion of Poland just nine days later.

Stalin’s Communist USSR distrusted Hitler’s Nazi Germany, knowing that ultimately Hitler intended to invade and annex Russia. Similarly, Britain distrusted Stalin due a fear of Communism. Although talks took place between Britain and Russia in early August 1939 regarding a possible alliance against Hitler, they were never taken seriously by the British government who sent their representative by a slow boat and gave him no authority to actually make any decisions.

Frustrated, Stalin’s government received Ribbentrop later that month. He proposed the Nazi-Soviet agreement which, in the face of continued British reluctance to form an alliance, was accepted. The Soviet government almost certainly knew that Hitler would break the non-aggression pact at some point and would invade Russia, but at least the pact delayed that and gave time to prepare.

The Nazi-Soviet Pact was broken less than two years after it was signed, when Nazi forces invaded the Soviet Union in Operation Barbarossa on the 22nd June 1941. All the territory gained by Russia under terms of the ‘secret protocol’ was lost in just a matter of weeks.

RAF Flight Officer T. D. Dean became the first Allied jet pilot to achieve a combat victory when he ‘tipped’ a Nazi German V-1 ‘doodlebug’ flying bomb with his Gloster Meteor jet fighter.

The V-1 was specifically designed for terror bombing civilians, and had first been used on 13 June 1944. The RAF began to investigate ways to intercept and destroy the Nazis’ new weapon, and soon found that they could be tipped over by positioning an aircraft’s wing to within 6 inches of the V-1’s wing. This manoeuvre used the changing airflow of the interceptor’s wing to force the V-1 upwards, confusing the flying bomb’s gyroscope and resulting in it diving into the ground before reaching its target. The first aerodynamic flip manoeuvre was performed by Major R. E. Turner on 18 June, using a North American P-51 Mustang.

The following month, No. 616 Squadron of the RAF received the first ever Gloster Meteor jet planes. This new aircraft, equipped with Sir Frank Whittle’s revolutionary turbojet engines, could reach speeds in excess of 400 miles per hour and placed it well within reach of the average speed of a V-1. The hope was that the new Meteors would be able to shoot the flying bombs down using their 20mm cannons, but the guns had a habit of jamming.

On 4 August Flight Officer T. D. Dean experienced a problem with his Meteor’s cannons as he approached a V-1. He consequently resorted to the tipping manoeuvre and successfully sent the bomb off course. It is believed to have crashed on farmland near Headcorn in Kent, where shrapnel said to be from the explosion can be detected deep inside the trunk of a nearby oak tree. The destruction of this V-1 marked the first ever ‘kill’ for an RAF jet plane.

On the 2nd August 1934, the 86 year old German Reichspräsident Paul von Hindenburg died of lung cancer and Adolf Hitler became both the Führer and Reich Chancellor of the German People. It effectively merged the offices of both the President and Chancellor into one role, and therefore completed what the Nazis referred to as Gleichschaltung (or “Co-ordination”) by establishing Hitler as both Germany’s head of state and head of government.

Interfering with the post of President was illegal under the terms of the 1933 Enabling Act, and although Hitler merging the two positions removed any political checks and balances of his personal domination of Germany, a plebiscite held 17 days later on the 19th August saw an enormous 90% of people approving of the change.

Hitler’s assumption of the role of Führer also allowed the Nazi Party to more actively pursue its promotion of the ideology of Führerprinzip. This stated that Hitler possessed absolute control over the German government. Supported by a propaganda machine that relentlessly pushed the slogan Ein Volk, ein Reich, ein Führer – which translates as “One People, One Empire, One Leader” – the Führerprinzip also confirmed the Nazi Party’s complete control over every element of German society. This ranged from local government to factories and even to the management and control schools, although in terms of government it sometimes meant that officials were reluctant to make decisions without Hitler’s personal input or approval. It was also used by Nazi war criminals at the Nuremberg Trials to argue that they were not guilty since they were only following orders.