The Emancipation Proclamation freed all enslaved people in the Confederacy, but not the Border states. Which states make up the Border
states?

The border slave states of Maryland, Delaware, Kentucky, and Missouri remained with the Union, although they all contributed volunteers to the Confederacy. Fifty counties of western Virginia were loyal to the Union government, and in 1863 this area was constituted the separate state of West Virginia

Explanation:

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.

not sure might be he acquired the entire oregon territory from great britain