Sectionalism refers to a strong loyalty or allegiance to a particular region or section of a country, often to the detriment of national unity. It typically involves promoting the interests of one's own region over those of the country as a whole and can lead to divisions and conflicts within a nation. Sectionalism was particularly prominent in the United States during the 19th century, as different regions had varying economic, social, and political interests, especially in relation to issues such as slavery and states' rights. It ultimately contributed to the divide that led to the American Civil War.
