Because of the romace the climate the food the energy of people there because of the rich history because of rome and much more
Possibly allies and they way they interacted with other countries, by trade etc. and strengthening their economy for war.
Not sure if this is the answer your looking for but one could be They reacted to it harshly, and were suspicious of all immigrants that came to American from a communist country
Answer:
Shipping goods between the east coast and the west coast was made easier by the Transcontinental Railroad.
Explanation:
The building of the transcontinental railroad opened up the American West to more rapid development. The railroad also facilitated westward expansion, escalating conflicts between Native American tribes and settlers who now had easier access to new territories.
