Why World War II Really Started – The Key Causes
World War II was the deadliest conflict in history. It killed millions of people and destroyed cities across the globe. Even today, many world events and country relations link back to this war. It started in 1939 and lasted until 1945. But why did it happen? The real reasons go back to the end of World War I and a mix of events that built up over time.
Via History
No single thing caused it, but a chain of problems like unfair treaties, economic troubles, and rising leaders with bad ideas led to the explosion. It is imperative to explore key steps that sparked the war, from harsh peace deals to invasions that pulled the world into battle.
The Treaty of Versailles
After World War I ended in 1918, the winners signed a peace deal in 1919 called the Treaty of Versailles. This treaty blamed Germany for the whole war. A key part, Article 231, said Germany had to pay for all the damages. Winners like France and Britain wanted Germany to suffer and pay back their losses. So, Germany had to give up land, limit its army, and pay a huge fine of $33 billion back then. That’s like $270 billion today. Germany didn’t finish paying until 2010, almost 100 years later.
Via History
This deal hurt Germany badly. It lost important areas with resources and people. The army could only have 100,000 soldiers, no submarines, and no air force. The navy was tiny, too. People in Germany felt angry and ashamed. They called it a “dictated peace” because they had no say. Leaders from the winning side, like France’s Georges Clemenceau, wanted revenge for their own losses in the war. But this harshness planted seeds of hate that grew into bigger problems later.
Economic Hardships in Germany
The treaty’s fines crushed Germany’s economy. In 1921, they made the first payment, and soon hyperinflation hit. That means money loses value super fast. For example, in 1922, bread cost 160 marks in Berlin. By 1923, it cost 200 billion marks. People carried wheelbarrows of cash just to buy food. Jobs vanished, and unemployment soared. Families struggled, and the country felt broken.
Via NPR
Then, in 1929, the Great Depression made things worse. This was a worldwide economic crash that started in the U.S. but hit Germany hard. By 1933, six million Germans had no jobs. Many were homeless, and kids went hungry. Banks failed, factories closed, and hope faded. People looked for someone to blame and fix it. This chaos opened the door for extreme leaders who promised quick changes.
The Rise of Adolf Hitler
In this mess, Adolf Hitler stepped up. He was a young politician who fought in World War I and hated the treaty. He led the Nazi Party, which stood for National Socialist German Workers’ Party. Hitler was great at speeches that stirred emotions. He blamed Germany’s problems on Jews, socialists, and the treaty. In 1923, he tried to overthrow the government in a failed coup called the Beer Hall Putsch. He went to jail but became more popular.
Via The Times
Over the next years, the Nazis used propaganda, spreading lies and ideas through the media, to gain support. They said Jews controlled everything and caused the Russian Revolution, leading to the Soviet Union. This was a fake story called Judeo-Bolshevism. Hitler wrote a book, Mein Kampf, outlining his plans for a pure German empire. By 1933, with the economy in ruins, the Nazis won elections. Hitler became the chancellor, then the dictator. He ended democracy, controlled the press, and built a police state.
Hitler’s Vision and Early Actions
Hitler dreamed of a “Third Reich,” a new German empire for “Aryan” people he saw as superior. He wanted to kick out Jews, Slavs, and others. To grow strong, he needed more land for “Lebensraum,” or living space. He started breaking the treaty secretly. By 1935, he revealed Germany had an air force, against the rules. Britain even signed a deal allowing a German navy, thinking the treaty was too harsh.
Via Holocaust Encyclopedia
France got scared and built a huge wall called the Maginot Line along its border with Germany. It was 450 kilometers long with forts and guns. But Hitler kept building his army. He remilitarized the Rhineland in 1936, another treaty break. No one stopped him, which made him bolder. He tested how far he could go without a fight.
The Annexation of Austria
By 1938, Hitler targeted Austria, his birthplace. He wanted all German-speaking lands united, called Anschluss. Austria’s leader, Kurt Schuschnigg, resisted at first. Hitler forced him to sign a deal putting Nazis in Austria’s government. Nazis got key jobs, like the finance minister. When Schuschnigg planned a vote on staying independent, Hitler invaded on March 12, 1938.
Via Britannica
German troops marched in without much fight. Many Austrians welcomed them, thanks to propaganda promising strength and unity. No blood was shed, and Austria became part of Germany. The world watched but did nothing big. Britain and France protested but didn’t act. This success encouraged Hitler to grab more.
The Munich Agreement and Czechoslovakia
Next, Hitler eyed Czechoslovakia. It had a region called the Sudetenland with three million Germans. He claimed they were mistreated and demanded the land. Britain’s Prime Minister Neville Chamberlain wanted peace. He believed giving Hitler the Sudetenland would stop more demands. This was an “appeasement” policy.
Via Wikipedia
In September 1938, leaders met in Munich. Germany, Italy, Britain, and France agreed to give the Sudetenland to Germany. Czechoslovakia wasn’t even invited. Hitler promised no more grabs. Chamberlain called it “peace for our time.” But in March 1939, Hitler broke the deal. He invaded the rest of Czechoslovakia, splitting it. One part joined Germany, the other became a puppet state called Slovakia. This shocked everyone. Chamberlain got blamed for trusting Hitler.
The Pact with the Soviet Union
Hitler next wanted Poland. It had German lands from the treaty, plus a corridor to the sea, splitting Germany. But Poland allied with Britain and France. To avoid a two-front war, Hitler made a surprise deal with the Soviet Union’s Joseph Stalin. They hated each other, Hitler anti-communist, Stalin wary, but both wanted Poland.
Via Economic Freedom
On August 23, 1939, they signed the Molotov-Ribbentrop Pact, promising no attacks. Secretly, they planned to split Poland. Stalin got eastern Poland and the Baltic states. This freed Hitler to invade without Soviet worry.
The Invasion of Poland
On September 1, 1939, Germany attacked Poland with one million troops from the north, south, and west. They used “Blitzkrieg,” or lightning war: fast tanks, planes, and infantry to surprise and overwhelm. Poland’s army was outdated, still using horses against tanks.
Via Findmypast
Britain and France demanded that Germany stop. When ignored, they declared war on September 3. Australia, New Zealand, South Africa, and Canada joined. But no real help came to Poland. It fell fast. By September 17, the Soviets invaded from the east. Poland surrendered on October 6. It was split: west to Germany, east to the Soviets. This started World War II. Declarations came, but the early months were the “Phony War”; no big fights in the West. Everyone prepared.
Blitzkrieg and the Drug-Fueled Army
Blitzkrieg was Hitler’s secret weapon. It meant quick, shocking attacks with tanks (Panzer divisions) breaking lines, planes (Luftwaffe) bombing, then troops following. Wars ended in days, not months.
Via Stratfor
To keep speed, soldiers got Pervitin, now called crystal meth. It stopped tiredness, hunger, and fear. Soldiers fought nonstop, while enemies slept. This worked in Poland, then elsewhere. It gave Germany an edge in the early war.
The Winter War with Finland
While Germany paused, the Soviets eyed Finland, once Russian land. Stalin feared a German attack through Finland, near his city, Leningrad. He demanded land; Finland said no. On November 30, 1939, the Soviets invaded.
Via The Guardian
They had more men and gear, but the Finns fought hard in the snow with skis and traps. The war lasted until March 1940. The Soviets won but lost many. Finland gave 11% land in the Moscow Peace Treaty. This showed Soviet weakness, encouraging Hitler later.
Invasions of Denmark and Norway
In April 1940, Hitler invaded Denmark and Norway for iron ore and sea bases. Blitzkrieg again: Denmark fell in hours, Norway in weeks. Norwegian leaders fled to London, setting up a government in exile. The Nazis installed puppets. Britain couldn’t stop it. Chamberlain resigned on May 10; Churchill became prime minister.
Via World Atlas
The same day Churchill took over, Germany attacked the Netherlands, Belgium, Luxembourg, and France. Over three million troops, 1,000 planes. Called the Battle of France. Group B hit the Netherlands and Belgium, drawing the Allies north. Group C faked at the Maginot Line. Group A snuck through the Ardennes Forest, thick woods the French thought impassable, with 40,000 vehicles. They broke through, trapping the Allies at Dunkirk. Nearly 400,000 British and French troops were stranded on beaches, under air and ground attack.
The Miracle of Dunkirk
From May 26 to June 4, 1940, Operation Dynamo evacuated them. British ships, civilian boats, and air cover saved 338,000. But they left equipment behind. It was a “miracle” but a moral win for the Allies. Churchill said, “We shall fight on the beaches… we shall never surrender.”
Via Wikipedia
France fell soon after. On June 10, Italy’s Mussolini joined Hitler in the “Pact of Steel,” declaring war on France and Britain. France surrendered on June 22, split into Nazi-occupied north and puppet south (Vichy France).
Explore the Root Causes of World War II
The real reason World War II started was a buildup of resentment from World War I’s unfair end. The Treaty of Versailles humiliated Germany, causing economic ruin and Hitler’s rise. His hate-filled ideas, propaganda, and quick grabs went unchecked by appeasement.
Via Britannica
When he invaded Poland, lines were crossed, pulling nations in. Weak responses early let aggression grow. By mid-1940, Europe was mostly under Axis control, Germany, Italy. Britain stood alone, but the war would expand globally. Understanding this shows how ignoring problems can lead to disaster.
