Which rank is a direct superior to a First Lieutenant?

A Captain is a direct superior to a First Lieutenant in the military rank structure. In the hierarchy, ranks are arranged in a specific order where each rank has one or more ranks that immediately precede and succeed it. The relationship between a Captain and a First Lieutenant is part of this structured hierarchy, with the Captain positioned directly above the First Lieutenant.

First Lieutenants typically have a range of responsibilities and are often charged with leading troops, operating under the guidance of a Captain. The Captain is responsible for command decisions and operational oversight, making the Captain an essential position in the chain of command that directly supervises the First Lieutenant. Understanding this rank progression is important for comprehending military organization and leadership dynamics.