A number of events and factors led to the start of World War 2. Which was the bloodiest war in human history. It killed over 60 million people, including 6 million Jews that died in the Holocaust, and over 17 million Russians. That died in battle against Nazi Germany and its allies.

This article will explore the top 10 reasons behind World War 2 history, which can also be known as The Second World War or The Great War.

1. Will the Allies end World War 1?

In May 1918, Germany knew that they were losing The Great War (World War 1). Their armies had pushed back to just outside of Paris and their allies in Russia were beginning to surrender. It was clear to them that they couldn’t win. So they sent out a request to negotiate peace terms with Britain and France.

President Woodrow Wilson gave a reply with his well-known 14 Points on 8 January 1918. They included things like open covenants of peace, openly arrived at. After which there shall be no private international understandings of any kind. But diplomacy shall proceed always frankly and in public view.

2. Why did Japan invade China?

In 1931, Japan invaded Manchuria and created a puppet state called Manchukuo. Since that time, many smaller battles between China and Japan have taken place along China’s northern border.

The conflict in Asia was a major cause of World War II. We might never have joined it had it not been for Adolf Hitler in Germany and Benito Mussolini in Italy. Their aggressive moves led to war almost everywhere else in Europe.

Most people mistakenly think that Japan, Germany, and Italy all hated each other. Because they were all fascist countries with similar beliefs about government. However, there were more specific reasons why these three countries formed an alliance.

3. What was Italy doing in World War 2?

Mussolini had two big reasons for declaring war on France and Britain. Regaining Italian lands lost in WWI and ridding Europe of its Jewish population. In fact, Hitler considered Italy’s entry into WWII as a critical turning point in his rise to power. According to Germany and Europe, A History, by Gordon Martel.

When Italy joined Germany in 1939. It opened up a second front in France where Hitler was already attacking from Germany. By dividing France’s attention and military, Germany began winning more quickly.

The move came as a surprise because both countries were Axis members Germany, Italy, and Japan formed their own group within the Grand Alliance fighting against Great Britain (and later Russia) during WWII.

4. What were Germany’s aims?

What were Germany’s aims? The most obvious and stated aim of Hitler was to establish Lebensraum (living space) for Germans in Eastern Europe. When Germany had first made territorial gains after WW1, it felt betrayed by Britain and France when they tried to take these lands back at Versailles.

It then signed a non-aggression pact with Poland knowing that Britain would be unlikely to react militarily because of its treaty with Poland; but, as we now know, it gave Hitler free reign to expand Eastwards unchecked once he had broken that agreement and attacked Poland.

There is little reason behind why he waited so long (22 years!) before attacking his close European neighbor.

5. Who was Adolf Hitler?

Adolf Hitler (1889-1945) was an Austrian-born German politician and leader of the Nazi Party. Hitler was Chancellor of Germany from 1933 to 1945, serving as dictator and leading his country into a devastating war that caused millions of deaths. Within three years of his appointment as chancellor, Hitler established a totalitarian regime.

Adolf Hitler became one of history’s most infamous dictators, launching World War II in Europe with massive invasions of Poland and France. On April 30, 1945, only days before he committed suicide Hitler married longtime partner Eva Braun. The couple committed suicide by taking cyanide capsules on April 30, 1945; their bodies were burned in a bomb crater near his home in Berlin on May 1. It is estimated around 400 million people worldwide died during World War II. More than 70 million civilians and soldiers perished during fighting between 1939-1945 alone.

6. How did World War 2 start in Asia?

The Second Sino-Japanese War started on July 7, 1937, with a skirmish in northern China between Chinese and Japanese troops outside Peking (Beijing). It was instigated by Japan’s expansion into China. Initially, Japan was on very good terms with Germany and Italy.

After invading Manchuria, Japan found itself at war with China. In 1940 Germany invaded France through Western Europe. The allies then fought back with a devastating offensive against Germany through Western Europe that pushed them back beyond their borders.

This fighting dragged on until 1941 when Japan attacked Pearl Harbor. This attack drew America into World War II as an ally of Britain and Russia, who were already allied to each other.

The European Allies (USSR, Britain, France) fight against Hitler’s Germany until 1945 when USSR enters Berlin resulting in Hitler’s suicide after his defeat. He was replaced by Grand Admiral Karl Dönitz as head of state because Hitler designated him as such before committing suicide.

7. Why did World War 2 Start in Poland?

On September 1, 1939, Hitler’s troops invaded Poland. That surprise attack was because Germany did not want to have another war with France or Britain and they thought that Poland would give in without a fight.

The German army attacked from land and air, hitting Polish cities like Warsaw, Danzig (now Gdansk), Modlin, Radom, Kutno, etc. During five weeks of fighting that battle was very fierce, but it ended on October 6 when the Soviet Union invaded Poland from the east.

After 17 days both countries were ready to sign a peace treaty that divided Polish territory between Germany and USSR.

8. What led to the fall of France?

One reason that France fell to Germany is due to intelligence failures. There were several different reasons that caused France to fall, but one of them was an issue with intelligence. The Germans had convinced some of the citizens in occupied Paris that they were there only because they had been forced into it by Hitler and his troops.

They further encouraged citizens by saying they would be leaving soon, as they knew their presence wasn’t going to last long. Due to these falsehoods told by German officials and soldiers, a mass uprising never took place when they invaded, greatly reducing the French ability to put up a fight.

Another factor in France falling quickly was unpreparedness; France had planned on defending against an attack from Spain rather than a German invasion.

9. Who was Winston Churchill and what role did he play in WW2?

Winston Churchill was a British politician who served as Prime Minister during both world wars. As Prime Minister, Churchill maintained Britain’s resolve during their darkest hour of WW2. His speeches are considered some of his best and most inspiring, including his iconic We Shall Fight on The Beaches speech made following Germany’s invasion of France in 1940.

With his unmistakable voice and powerful oratory skills, he was able to rally Britons behind him with one of his famous quotes, Never give in; never give in nothing great or small, large or petty – never give in except to convictions of honor and good sense. During World War Two, he spent much time visiting troops at home and abroad but paid a terrible price: he lost three sons fighting against Hitler’s Nazis.

10. The Pearl Harbor Attack – Why, When, and How it Happened

The attack on Pearl Harbor was a surprise military strike by Imperial Japan against the United States naval base at Pearl Harbor in Hawaii on December 7, 1941. The strike led to US entry into WWII. What happened? The story is actually pretty straightforward and starts long before December 7th. In fact, it started at least 40 years before that fateful day.


There is no simple answer to what caused World War II. A combination of factors contributed to set off such a catastrophic war, and it is safe to say that we will never fully understand what made some of these countries react so violently. The scary thing is, we still see conflicts happening today due to similar issues. Perhaps if we learn from history, we can try our best to avoid future conflicts – but only time will tell. Be sure to keep following our page for more articles about historical topics!


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