What major impacts did the Dred Scott decision have on regional divisions in the United States?

The Dred Scott decision outraged abolitionists, who saw the Supreme Court's ruling as a way to stop debate about slavery in the territories. The divide between North and South over slavery grew and culminated in the secession of southern states from the Union and the creation of the Confederate States of America.

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.

north atlantic treaty organization.