They traveled to America with the pilgrims to practice religious freedom
Switch out the soil with more fertile soil
During the 19th century, America had a strong reluctance to become involved in other countries alliances and affairs. Isolationists in America argued that the US had a different philosophy than European countries and the US should defend freedom and democracy by not being involved in such things.
During the Spanish-American War, the US remained isolated and the country fought the war without alliances and without fighting in Europe. But the mindset started to change since the motto of freedom and democracy was substituted by the US bringing an empire in the Caribbean and in the Pacific - the US had influence in the Phillippines, Puerto Rico and Guam -.
President Roosevelt had the big stick policy, he believed that the US should export its values and become a global power. At the same time, he defended that the US should avoid conflicts. President Roosevelt ended the isolationism in the US and started the modern American philosophy of acting aggressively in foreign affairs even without the support of the Congress.
African Americans, carpetbaggers and scalawags comprised the Republican Party's largest Southern constituency during Reconstruction. The Scalawags were the white Southerners who backed the Reconstruction policies and were usually Union loyalists during the Civil War. Carpetbaggers were the Northerners who moved to the South during the Reconstruction era mostly for economic and political gains.
Resources, their army, and money, were all dwindling after constant fighting.
