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The first incident that began to change American public support for entry into World War 1 was the sinking of the Lusitania cruise ship in 1915 by a German U-boat. In 1916 two large explosions destroyed two munitions factories and it was immediately blamed on German saboteurs. Finally, in 1917 a message that is now known as the Zimmermann Telegram was intercepted and publicly revealed. It was a message from Germany requesting Mexico to attack the US in return for some of their old territory back, namely Texas, New Mexico, and Arizona. All of these events, in addition to the Rape of Belgium at the outbreak of war in 1914, galvanized the people into fully supporting a war against Germany.
Wiki User
∙ 9y ago
Wiki User
∙ 8y agoThe 4 reasons that the US entered WWI:
1. The Sinking of the Lusitania
2. German U-Boats sinking US cruise ships and cargo ships
3. The Zimmerman Telegram
4. The Russian Revolution
As an aside, the Russian revolutions did not cause the US to enter WW 1.
Wiki User
∙ 13y agoAdd your answer:
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What were the reasons that Japanese entered World War 1?
They didn't? You're thinking of World War II.
What are 5 reasons why the war broke out in World War 1?
The main reason for the breakout of the world war was that the heir to the austrian-hungary throne was assassinated in Siberia. Austria laid down 10 conditions in front of Siberia which Siberia declined .Germany entered to show their support for Austria and Russia entered for Siberia. The war soon spread throughout Europe and was known as the first world war
What heavy bombers were built by the British in World War 2?
The two successful four-engine bombers were: 1. The Handley Page Halifax (entered service in 1941) 2. The AVRO Lancaster (entered since in 1942).
In which year did America enter World War 1?
The US entered World War 1 on April 6, 1917. The war ended about one and a half years later.
What were the final effects of world war 1?
Jesus entered the war and destroyed Russia.
What were reasons why Germany entered world war 2?
they started it
Why did America go to war World War 1?
The US entered the war for a variety of reasons
What were the reasons that Japanese entered World War 1?
They didn't? You're thinking of World War II.
What are 2 reasons the US should not have entered world war 2?
try this website http://www.conservapedia.com/Debate:Should_the_United_States_have_entered_World_War_II%3F
First war in the world?
America entered the 1st world war in 1917. it waited till this date for many reasons. when Russia signed a peace treaty with Germany because of the former bolshivik revolution, america entered with the allied powers to balance power. it waited till this date also to be the saver of humanity, as it is claimed america entered the war to save humanity from hitler.I n fact it entered the war to apply the wilsonian world order or what is now known as globalisation to be at the top of the world.
What year did the US entered world war 1?
1917 smart
What were the reasons the US eventually entered the war?
Because they wanted to win !
Four reasons for World War 2?
nationalism, militarism,patriotism,and disatisfication with the treaty of Versailles
What date US entered World War 1?
The US entered the war on April 6,1917
What are 5 reasons why the war broke out in World War 1?
The main reason for the breakout of the world war was that the heir to the austrian-hungary throne was assassinated in Siberia. Austria laid down 10 conditions in front of Siberia which Siberia declined .Germany entered to show their support for Austria and Russia entered for Siberia. The war soon spread throughout Europe and was known as the first world war
Why did the US enter World War 1 with the allied powers?
One of the main reasons the US entered World War I on the side of the allies was because the Germans had sunk the Lusitania, a passenger ship containing many Americans.
Why did czechoslavkia enter World War 2?
They entered because they wanted to EDIT: Czechoslovakia never entered World War II. It was annexed by Germany before the war began.
