Answer:
The U.S. made its major contributions in terms of supplies, raw material, and money, starting in 1917. ... During the war the U.S. mobilized over 4 million military personnel and suffered 110,000 deaths, including around 45,000 who died due to the 1918 Spanish influenza outbreak (30,000 before they even reached France).
Explanation:
Good question it depends on how dangerous and the people
Answer: pony express
Explanation:
they were the most usefull way
