What three significant issues did the federal government have to address during reconstruction?

Reconstruction comprised three major initiatives: restoration of the Union, transformation of southern society, and portrayal of progressive legislation favoring the rights of freed slaves. President Abraham Lincoln’s Proclamation of Amnesty and Reconstruction—give out in 1863, two years before the war even ended—plotted out the first of these initiatives, his Ten-Percent Plan. 

And this too use this if needed