When did Southerns go from seeing the US Military as the aggressors in the Civil War to generally being pro-US Military?

by Ridefeather

I've heard from a lot of people in the Southern US about how a lot of Union Soldiers, during Sherman's march to the sea and also during the Reconstruction, were involved in a lot of terrible war crimes.

I'm wondering how long it took for the people in the South to in general see the US Military as on their side, especially considering how pro-military the South in general seems to be today.

Georgy_K_Zhukov

More of course can be said, but I do touch on this in this thread, particularly the importance of the Spanish-American War as a turning point, so it may be of interest.