The Union Flag
This is the union flag during the Civil War. They used this flag right before they started to fight in war, it was probably on their uniforms. The flag also showed what areas they took over. The union flag represented their side in the war, so it's kind of different from our flag.
The Confederate Flag
This is the confederate flag during the Civil War. This flag also represented the areas they took over, one major area that they took over was Fort Sumter. This flag was also on a soldiers' uniforms. This flag represented their side in the war, there were the 13 states on the flag which represents the states they lived in. It is much more different from our flag.