A i believe, since they supplied allied countries with supplies
Answer: It's because the American economy was tied to them. As US economy was in great shape due to the increase demand of wartime supplies. Britain naval blockade made it impossible to trade with Germany as well we have long historic ties with Britain and France.
Explanation:
The main way in which technology promoted urban growth around the turn of the century was that factories were forming in the north, which enticed many people in the south to move north to the cities.