Question

This is the political loyalty to one's own region of the country over the entire country. This was a major factor leading up to the Civil War.

Answer 1

In politics the term Regionalism, speaks of the movement or ideology that caters to a certain area or group of people that do not necessarily share the political identity,vision and commonwealth of the nation as a whole but to their individual needs, this was an important factor in the the American Civil War given that the Union(North) and the Confederacy(South) had major  disputes over issues such as slavery, states rights and borders and tariffs, that ended up past politics escalating into an armed conflict.