1. 11.2 American Power Tips the Balance
What problems did the U.S. face as it entered the war?

2. How Did the U.S. Prepare for War?
First, the U.S. needed to build up its armed forces
Congress did this by passing the Selective Service Act, which required men to register with the government so they could be drafted into service
This put about 3 million men in uniform
Women served in non-combat positions

3. America Turns the Tide
To prevent loss by German submarine attacks, the U.S. and Britain began using the convoy system, where merchant ships traveled in a large group guarded by naval vessels
American soldiers helped turn the tide of battle in Europe because of their energy and attitude

4. Fighting ‘Over There’
The American Expeditionary Force was led by General John J. Pershing
American infantrymen were called doughboys b/c of the white belts they wore and cleaned with pipe clay, or ‘dough’
New weapons like the tank and the airplane played a decisive role in the war
Pilots went from shooting each other with pistols to using mounted machine guns
Eddie Rickenbacker was an American ace pilot who shot down 26 enemy planes and fought in 34 air battles

5. Continued New weapons and tactics made World War I very destructive
Soldiers faced miserable conditions, including filth, trench foot, trench mouth, ‘shell shock’ from constant bombardment, vermin, poison gas, and disease

6. American Troops Go on the Offensive
American soldiers arrived in Europe just in time to stop a German advance on Paris
One soldier, Alvin York, had been a conscientious objector (a person who opposes war on moral grounds), but eventually his actions in battle gained him national celebrity
Germany, finally exhausted from the war, agreed to an armistice on November 11, 1918
The war took a bloody toll, killing more than 22 million and causing untold suffering