What Happened After Pearl Harbor Attack?

There were some major historical phenomenons that happened after the surprise Japanese attack at Pearl Harbor Island.

So, what are they?

Short Answer:

  • Pearl Harbor Attack United The USA’s Citizens And Polarized Their Opinion Towards World War 2.
  • US Declare War On The Empire of Japan And Formally Entered WW2.
  • Nuclear Attack On Hiroshima And Nagasaki.
  • Italy And Germany Declared War On The United States.
  • Raised A Hope To Defeat Nazi Germany And Their Military Alliance (Central Power).

Here we have discussed the consequences below into five main phases.

Among them, the first is…

What Happened After Pearl Harbor Attack
Consequences of Pearl Harbor Incident

Pearl Harbor Attack United The USA’s Citizens

Before the Japanese attack at Pearl Harbor Island, the USA’s citizens were diversified into various groups with various opinions.

They had different viewpoints over the war.

In public opinion polls, some percentages of people were in support of America to enter World War 2 and help its allied power nations like Great Britain and France.

They mainly wanted the US government to do it for protecting Democracy from dictatorship.

But at the same time, some percentage of people didn’t want America to enter into the World War and interfere with Europe and Asia’s internal political matters.

This group of people simply wanted their country to keep neutrality and take advantage of the situation for their economic development.

Especially, most of them didn’t want the US to fight against Nazi Germany and Fascist Italy. Because these nations were the big markets for their goods. 

But when the attack of Pearl Harbor took place, American citizens got dramatically unified.

It polarized their midset into one side.

Now most of them wanted their country to declare war on Japan and enter World War 2.

This was the first and immediate consequence that came after the surprise attack of Pearl Harbor.

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US Declare War On Japan And Formally Entered WW2

On the 7th of December, 1941 the Empire of Japan started an airstrike at Pearl Harbor’s US navy fleet.

But the most interesting thing is, before an hour, the USA and Japanese diplomats were in a diplomatic talk for solving conflicts in the Pacific region.

Mainly they were in a diplomatic negotiation to withdraw US sanctions from Japan.

But everyone got shocked when the unthinkable incident happened on the 7th of September 1941.

After two continuous hours of bombing, more than 2400 American people died, and 21 navy ships got highly damaged.

After the betrayal incident, the US ended up all diplomatic negotiations with the Japanese Empire.

The next day, on 8th December 1941, US President Franklin Delano Roosevelt declared war on Japan and formally entered World War 2.

The speech that the President gave while declaring war is still famous as the ‘Infamy Speech’.

united states of america after pearl harbor attack

Nuclear Attack On Hiroshima And Nagasaki

In the final year of World War II, the United States of America dropped two atomic bombs, named ‘Littleboy’ and ‘Fatman’ on two Japanese cities, Hiroshima and Nagasaki.

Some political analyzers want to say, the nuclear attack by the USA was an act of revenge for Pearl Harbor’s tragedy.

They rationalize, the way the Japanese suddenly attacked the USA’s navy fleet and killed thousands of people, similarly the USA also suddenly attacked them.

However, not all people agree with this argument.

Because the nation didn’t make the bomb only targeting Japan. The United States and its allies’ main goal was to make it before the Nazis.

Earlier they thought to use it against Germany.

Although, it no longer possible as Germans surrendered on May 7, 1945, to the Soviet Union.

The United States succeeded in making it after almost three months. 

Out of all the Axis countries, only Japan was left which had not surrendered till now.

On the other hand, after defeating Germany, the Soviets also began attacking Japan; the United States and its Western allies didn’t prefer Japan to surrender in front of the Communist nation.

So, to bring the Empire of Japan to the knees and surrender to the US, they attacked with the atom bombs on August 6th (Hiroshima) and August 9th (Nagasaki), one by one.

The nuclear attack made Japan oblige surrender to the USA and it ended WW2.

 

Italy And Germany Declared War On America

In 1940 on 27th September, a military agreement signed between Japan, Germany, and Italy.

This military agreement gave birth to the Central power for the 2nd World War.

The treaty is popular as the Tripartite Pact or Berlin Pact

As per the treaty, if a country declares war against one of those three, then the other two nations would have to come further to help the first one.

In a simple sentence, the pact was signed to fight together and expand together.

On 8th September 1941, the US declared war on the Japanese Empire.

Therefore in the same year on 11th September, Nazi Germany and Fascist Italy also had to declare war on the United States.

Even though, the US had no deep conflict against the Axis power of Europe; but they had to involve there too.

So, this was also a significant phenomenon that happened after the attack of Pearl Harbor.

 

Raised A Hope To Defeat Nazi Germany

Before the United States entering into World War 2, only Great Britain remained left, which was fighting powerfully against Axis forces.

Hitler’s Nazi army already occupied France; China and the Soviet Union’s conditions were also started being very bad.

The British Prime Minister Winston Churchill tried multiple times asking for help from the USA; but each time, they rebuffed saying that it was Europe’s internal matter.

On the 7th of December 1941, the Japanese attacked Pearl Harbor and when the British Prime Minister got the news, he expressed his feelings something like this:

“So, we had won after all! …We had won the war. England would live; Britain would live; the Commonwealth of Nations and the Empire would live.”

America’s entry made the allied forces more powerful and it raised hope again for the end of Nazi Germany.

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