How did American troops booster morale of the Allied Powers

In addition to troops, the United States provided arms, tanks, ships, fuel and food to its friends. This aid helped the Allies win. You could say Stubby joined the Army in 1917.

Explanation:

In addition to troops, the United States provided arms, tanks, ships, fuel and food to its friends. This aid helped the Allies win. You could say Stubby joined the Army in 1917.

Explanation:

b. second continental congress

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.