Enigma and The Code Breakers
By Liam McCann
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About this ebook
Appeasement had given way to abject betrayal and the whole of Europe was plunged into war once more. The Germans believed they had a secret weapon that would give them a crucial advantage over the Allies: Enigma. This cipher machine allowed the German High Command to exchange coded messages with its forces in the field. As this enabled the German military to act as a single co-ordinated entity, it gave them the basis for Blitzkrieg, the lightning war that overwhelmed Eastern Europe and then France. The code was thought to be unbreakable because it was transmitted and received via complex Enigma machines.
It immediately became a priority for the Allies to crack the code so they could monitor German troop movements, track their ships and submarines, and prepare for the Luftwaffe's strategy against the RAF and their bombing campaign on London.
The task of breaking Enigma was handled by teams at Bletchley Park. This is the story of how they exploited weaknesses in the machine itself and took advantage of errors made by the German operators. By cracking the code, the men and women at the park shortened the war by at least two years and saved five million lives.
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Enigma and The Code Breakers - Liam McCann
Introduction
By 1938 war in Europe seemed inevitable. It had only been 20 years since the war to end all wars, and the horrors of conflict were still fresh, but that didn’t stop all sides re-arming and preparing for more bloodshed. Germany may have been defeated in 1918 but it remained the largest and most powerful nation-state on the continent.
Many believed that the settlement at the end of World War One was neither clean nor decisive. The Treaty of Versailles didn’t make much of an allowance for peace as it punished Germany by confiscating territory and forcing the people to pay reparations to help rebuild France and reduce the Allied debt to America. The German army was almost completely demilitarised, deprived of its modern weapons and slashed to a fraction of its former size. So instead of negating Germany as a threat, the settlement led to deep-seated resentment among its people. These feelings were only heightened when the country’s economy spiralled out of control in the early 1920s. The downturn left millions penniless and contributed to more bitterness in the country’s darkest hour.
The people believed that they hadn’t been beaten in battle and had been betrayed on the Western Front by incompetent leaders and at home by weak politicians. They needed someone to turn to who would relieve them from their suffering and who would avenge the humiliation heaped on them by the West.
The Americans, British and French drew up proposals for a League of Nations that would resolve international disputes by diplomatic rather than military means. The powerful Austro-Hungarian Empire was dissolved into smaller states like Czechoslovakia, but there were still issues that needed to be addressed, such as the allegiance of millions of Germans living in these new states. It was this desire to be reunited with their brothers in central Europe that was the time bomb waiting to explode.
illustrationThe League of Nations is founded in 1920
President Woodrow Wilson was overruled by congress on his return to the US and America was forced to withdraw from the League of Nations. Without its most powerful member, the league was bereft of the strength it needed should territorial disputes arise.
Germany’s fledgling Weimar Republic was immediately threatened when right-wing nationalists clashed with revolutionary communists. Tension escalated when ordinary people’s savings were wiped out during the hyperinflationary years and economic turmoil. The time was right for a skilled orator – who worked receptive audiences by preaching extreme right-wing views – to begin his ascent to power.
Adolf Hitler had been born in Austria but he’d fought for Germany with distinction in the First World War. After the conflict he returned to Munich and started recruiting followers to the once-marginalised National Socialist Party. By October 1923 Hitler believed he had enough support to overthrow the republic, but he was stabbed in the back by supposedly loyal followers and the coup failed. He was imprisoned for nine months, during which he wrote Mein Kampf (My Struggle), which blamed Germany’s weak economy on the Jews and claimed the way to solve the country’s problems was to seize territory in Eastern Europe.
When he was released, he realised he could only assume power via legitimate democratic means so he used his oratorical skills to lure more recruits to the cause. But when the Weimar Republic survived the economic downturn in the early 1920s and brought five years of prosperity, support for the extremists dwindled. It seemed as if the national socialists would be consigned to history.
In 1929, however, Hitler was thrown a lifeline when the US stock market crashed. The Great Depression swept across the world and unemployment reached six million in Germany by the end of the decade. Hitler used this climate of social and political unrest to recruit millions of young people to the Nazi movement and he soon offered a viable alternative.
illustrationAs the German economy spiralled out of control, piles of worthless banknotes were still distributed
illustrationA 50,000 Mark note from early in 1923
In the 1932 elections, Hitler’s Nazis became the dominant force in Germany’s parliament but he refused to form a coalition. To avoid political and economic turmoil, in January 1933 President Hindenburg proclaimed Hitler Germany’s chancellor, the head of its government. A month later the Reichstag burned down so Hitler was given emergency powers and he immediately banned all other political parties. He may have risen to power democratically but he then abolished the freedoms by which he’d been elected. When Hindenburg died the following year, Hitler declared himself Führer, absolute leader of all Germany.
illustrationBy the end of the year, 50 Billion Mark notes were also of little value
illustrationHitler (far right) with the Bavarian Reserve Infantry during World War One
illustrationHitler receives an ovation having been elected to power in 1933
Hitler initially rebuilt German confidence and lowered runaway unemployment by putting millions back to work building the new autobahn system. However, he was also secretly ignoring the constraints of the Treaty of Versailles by beginning a programme of re-armament. For two years the country stockpiled arms and machinery until, in 1935, Hitler flouted the conditions imposed by the West and unveiled his new air force, the Luftwaffe. Later that year the French-occupied Saarland voted to return to German rule, and in 1936 Germany reoccupied the demilitarised Rhineland. Britain and France didn’t object because the territories and population were rightfully German.
Hitler wasn’t alone with his expansionist aspirations: in the Far East, Japan’s military pretensions manifested itself in the invasion of China in 1937. They already had troops in Manchuria and were also looking to expand into British colonies like Burma, Malaya and Hong Kong; the French outpost of Indochina; and the Dutch East Indies. The US held several small territories in the Pacific but they had downsized their navy after the Great War and couldn’t combat Japanese aggression. With the US suffering in the depression, Japan made its first move into the mainland in 1931 but it was another six years before they struck at the heart of China. With Mao Tse-tung and Chiang Kai-shek battling one another for political control, China was in turmoil and couldn’t initially resist.