Which of the following best describes the main effect of the draft between 1917 and 1919?

It had drafted men ages 18 to 45 years old.  This resulted in a total of 2 million Americans volunteering for the War.  It increased the size of the U.S. army.  This was due to the patriot fervor that griped the nation to fight during the First World War.

these civilizations were located around fertile rivers, where they could produce an abundance of crops

the roman empire began to fall