Because Kansas is darker and more like horses like an Suburban
As the population of a civilization grows, it struggles to provide resources for the population. One of the easiest solution to this is to expand their territory in order to amass more money and power by taking the resources of others instead of producing their own.
Some expansions of territory lead to conflict but not always, there are countless ways to forge peace and harmony by sharing learning and the promise of stability by strong leaders.
It is agriculture. :) :) :) :)
Answer:
1900 - U.S. forces participate in international rescue in Peking, in Boxer Rebellion.
1900 - Imperialism issue in presidential campaign.
1901 - Hay-Pauncefote Treaty.
1901 - Platt Amendment, to protect Cuba's independence from foreign intervention.
1902 - Drago Doctrine.
1903 - Big Stick Diplomacy.
It would be the US. The US economy sky rocketed after WW2.