-To reunite the country: After the American Civil War, the North wanted to reunite the country as quickly as possible. Reconstruction was seen as a way to do this by rebuilding the South's infrastructure and economy, and by helping to free and educate the newly emancipated slaves.
-To abolish slavery: The North had fought the Civil War to end slavery, and Reconstruction was seen as a way to ensure that slavery would never return. The 13th Amendment to the US Constitution abolished slavery, and the 14th and 15th Amendments guaranteed African Americans the rights of citizenship and suffrage.
-To promote economic development: The North wanted to help the South rebuild its economy after the war, so that it could become a prosperous part of the United States. Reconstruction programs provided financial aid and other resources to help the South rebuild its infrastructure, including roads, bridges, and railroads.
-To promote social justice: The North wanted to help to improve the lives of African Americans in the South, who had been subjected to discrimination and violence before and during the war. Reconstruction programs provided education and other opportunities for African Americans, and helped to establish the foundations for the modern civil rights movement.
Reconstruction was a complex and challenging period in American history, but it also made significant progress in terms of reuniting the country, abolishing slavery, promoting economic development, and promoting social justice.