After their success at the Battle of Chickamauga, the Union made plans to take control of

The Union’s campaign into Georgia aimed to capture Atlanta, a major center of industry and trade, and disrupt the South’s rail and supply networks. One detail in the question is mistaken: the Confederacy won at Chickamauga. The Union’s later victories around Chattanooga helped open the way for the advance into Georgia, so the best choice is “Georgia’s industry and trade.”

AI-written and checked against the verified answer.