There would be a heavy Nationalistic point inside the foreign policy, in which treaties & alliances would only forged when it benefits the Nationalistic country, & that war would be declared, or that they would only join a war if there would be a huge benefit that can be reaped from the war. Nationalistic views can also lead to a country taking over another one and turning them into a colony to further the resources available or making the nationalistic country more strong.
Postwar recovery that imposed harsh standards on the Southern states and supported newly freed slaves (freedmen) in their pursuit of political, economic, and social opportunities.
