Captains are in charge, but they aren't the highest rank in the army!  ๐
They are typically above lieutenants but below majors. A lieutenant often helps the captain and can lead smaller teams. In contrast, a major has more experience and commands larger groups!  ๐
For example, in the U.S. Army, the order of ranks goes: private, corporal, 
sergeant, lieutenant, captain, and then major. This ranking system helps everyone know who to follow and how to work together, making the army strong and organized!  ๐