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A German U-boat had sunk the British passenger ship the Lusitania at great loss of life. Unrestricted submarine warfare was suspended following public outcry in the US, but was reinstated in 1917. This eventually led to the American declaration of war on Germany.

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โˆ™ 2009-06-07 16:09:00
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Q: How did submarine warfare cause the U.S. to enter World War 1?
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Related questions

What was the major factor in the US decision to enter World War 1?

Germany's unrestricted submarine warfare

The major reason for America's decision to enter World War 1?

unrestricted submarine warfare

What was a major factor in the decision of the US to enter World War 1?

Germany's unrestricted submarine warfare

What two reasons caused the US to enter World War 1?

Unrestricted submarine warfare and the Zimmerman Telegraph

The US decided to enter the war in response to?

Germany's return to unrestricted submarine warfare.

What prompted the US to enter World War 1?

The German government announced the reopening of unrestricted submarine warfare in 1917. This action brought the US to declare war on Germany.

When did US enter wwl?

in 1914 they entered the war because of propaganda,sinking of lusitania, submarine warfare etc

What two German actions caused the US to enter Wold War 1?

The Zimmermann Note, submarine warfare

What had the greatest effect in moving the US toward participation in World War 1?

Submarine warfare was abhorrent in the US during WW1. The British sank US ships trying to enter blockaded German ports. The same is true of US ships trying to enter blockaded British ports. However the Germans use submarine warfare to sink a USS Lusitania. That was the tipping for the US. Prior to then we were not wanting to get into "entangling alliances.

To what extent did the US achieve the objectives that led it to enter World War 1?

The U.S. entered World War 1 to stop the unrestricted submarine warfare being carried out by Germany. The U.S. achieved its objectives to the fullest extent.

Why was is it in the best interest for the US to enter World War 1?

It was in the best interest for the U.S. to enter ww1 because Germany was using unrestricted submarine and naval warfare. Example: Germany sunk a British passanger ship named the Lusitania with many U.S. Citizens on board.

Were Americans Universal in their desire to enter World War 1?

No. Its reason for joining the War is because the three ships that were, sank shot by Germany as they used the illegal power (unrestricted submarine warfare). Alvin Saptauli

How did the you-boat attacks in spring of 1917 help bring the US into world war 1?

"Unrestricted submarine warfare" led to a u-boat sinking of a passenger ship, Lusitania, with US citizens on board. This was the official excuse to enter the war.

Why did US enter fight during World War 1?

Unrestricted German submarine warfare was destroying US ships and killing US passengers. The Americans were also angry at the Zimmerman Telegram, in which Germany asked Mexico to attack the US.

How and why did President Wilson lead the United States into World War 1?

1. Circumstances that caused Wilson to change his mind and enter WW1: · Zimmerman Telegram - Germany sent to Mexico. Britain intercepted it and gave it to US Pres. Wilson. Germany planned to start unrestricted Submarine warfare on US and invited Mexico to join. (Germany was planning on breaking the Sussex pledge). · British influence in the US - Americans wanted to enter on the side of the Allies because the Germans and countries on the other side of the Allies were attacking us. · Submarine warfare and freedom of the seas - Germany was planning on starting submarine warfare on US and trying to control the seas. Then US wouldn't have any freedom and wouldn't be able to trade.

What event help provoke the United State to enter the World War 1?

Most people believe that it was the sinking of the British ship the Lusitania, but it was most likely the fact that Germany returned to unrestricted submarine warfare once Russia backed out of the war.

What US Submarine was the first to enter Tokyo Bay during World War 2?

USS Shark

What three events led the US to enter world war 1?

by Gerrnan submarine

When did they enter World War 1?

The US was oficcially neautral in world war two until 1917 when they declared war on Germany. Prior to this the US had supported Britain, despite being officially neutral. This led to Germanys use of unrestricted submarine warfare and the sinking of the Lusitania.

What happens inside a submarine to cause it to sink?

They open valves to allow seawater to enter the ballast tanks outside.

What two major events caused the US to enter World War 1?

1. The sinking of the ocean liner Lusitania (American lives lost to submarine warfare) 2. The Zimmerman Telegram (Germany tries to get Mexico into a war with the US)

What was the first submarine to enter tokoyo bay during World War 2?

USS Sea Devil

Which factor most contributed to the US' decision to enter World War 1?

German submarine attacks on merchant ships

What was the most compelling reason for the us to enter ww1?

The most compelling reason for the United States to enter World War I was the safety of American lives, goods, and naval vessels. With the German declaration (in early 1917) that unrestricted submarine warfare would commence, American soon had little choice but to stand by while German submarines took American lives or to enter into a war against Germany in protest.

Which nation caused the US to enter world war 1?

Germany's practice of unrestricted submarine warfare that led to the sinking of the Lusitania and the Zimmerman telegram, in which Germany promised Mexico its old lands in California, Arizona, and New Mexico if Mexico attacked the United States all led to the United States' entrance into World War I.