In World War 1, the Germans kept sinking the American cargo ships that were neutral, so eventually the president had had enough and went to war.
EDIT -> The German's used Unrestricted Submarine Warfare, which sunk the Lusitania. The United States let it go the first time, asking them to stop using USW, not wanting to get involved in WWI. However, as the war started to turn against Germany, they started using it again. This is another reason the U.S. joined the war.
In World War 2, the U.S. joined the war because of the Japanese attack on Pearl Harbor.
The US decided to enter WW1 on the side of the Allies because of German submarine warfare, the release of cables attributed to the Germans encouraging Mexico to attack the US, and the success of anti-German Propaganda.
The US decided to enter the WW2 on the side of the Allies because Japan invaded the Philippines and other US holdings in the Pacific and bombed the US Pacific Fleet at Pearl Harbor, so the Us was at war with Japan. Germany then declared war on the US, so the US also entered the war against Germany
The allies needed American forces to aid them during the war because Russia was pooping all over their supplies and the allies wanted America to get it off
The allies needed the United States to enter the war in order to add to their power. They realized that it would be much easier to achieve victory if they joined forces.
Because the French were puss*es and UK didn't give a f*ck.
Pearl Harbor
The US entered the war in April of 1917 and were on the Allies side.
Over the years, the United States had many motives for going to war. The nation has gone to war to protect itself, gain economic benefits, aid it's allies expand it's borders, or increase it's power and infulence. This answer can also be used for why the united states decide to enter the war and fight on the side of the Allies.
They were allies with Germany.
No, Chile was the last nation to join. They joined on April 11th, 1945.
I didn't fight at all, which side did you fight on.
All joins allies side.
The US entered the war in April of 1917 and were on the Allies side.
The US joined the war on the side of the Allies on April 6, 1917.
your mon
they needed more back up , and the felt that they were more on their side then anybody else
they needed more back up , and the felt that they were more on their side then anybody else
Over the years, the United States had many motives for going to war. The nation has gone to war to protect itself, gain economic benefits, aid it's allies expand it's borders, or increase it's power and infulence. This answer can also be used for why the united states decide to enter the war and fight on the side of the Allies.
They were allies with Germany.
No, Chile was the last nation to join. They joined on April 11th, 1945.
Allies
to end the war, ASAP.
The Irish-Americans possibly did not like Great Britain