answersLogoWhite

0

There were many factors which moved the US toward hostilities in World War II, but the causus belli was the Japanese attack on the US fleet at Pearl Harbor on Dec 7th, 1941. The US immediately declared war on Japan, after which Germany (rather inexplicably) declared war on the US.

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

Which nation's actions finally forced the US to enter the war?

The bombing of Pearl Harbor by Japan pulled the U.S. into WWII


What actions by Germany led the US to enter World War 1?

sinking of lusitania


What actions brought the us enter world war 2?

Japan bombed pearl harbor


Does the Soviet Union join Germany in world war 2?

No. The Soviet Union did enter World War 2 but on the other side. Germany invaded and then forced the Soviet Union into the war


What two German actions caused the United states to enter world war ii?

Japanese attack on pearl harbor in 1941


The actions of which country finally forced the United states to enter World War 2?

The Japanese attack on Pearl Harbour on 7th December 1941 followed by the German declaration of war on the US on 11th December.


What is pearl herbor?

A harbor and navy base near Honolulu, Hawaii. It was the site of the surprise Japanese attack on the US that forced the US to enter world War 2.


What country forced US to enter the war?

Japan , with it's attack upon Pearl Harbor .


Why did Persia enter World War I?

Persia did NOT fight in World War 1.


How was World War I different from other wars the US was involved in before?

us was directly not involved in world war 1 but was simply supporting allied powers like britain ,russia,etc by selling modern technology weapons as it had some sympethetical support for people of countries like britain but lastly usa was forced to enter the war when one of its submarines named i think not sure "luisitinina"was sunk down by the germans in mid 1917 so america was now forced to enter the war in favour of allied powers


Can you give me a sentence for the word reparation?

After World War I, Germany was forced to take the blame for the war and was then forced to pay reparations to the Allies.


What was Germany forced to sign after World War 1?

War guilt clause