Why did the federal government divide the former Confederacy into five military
districts?

They wanted to punish the South, and to prevent the ruling class from continuing in power. They passed the Military Reconstruction Acts of 1867, which divided the South into five military districts and outlined how the new governments would be designed.

one of the negative side effects were the economic losses the events of september 11th caused. many, many people lost their jobs as a result of a downturn in the economy after the terrorist attacks.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.