Senior Officer
In short
A senior officer is a middle-ranking commissioned officer in the military or uniformed services. They hold ranks above junior officers but below high-ranking flag or general officers.
In plain words
These are experienced leaders who manage larger groups of people and equipment. They sit in the middle of the command chain, handling important tasks between frontline leaders and top generals.
A simple example
A Major in the army or a Lieutenant Commander in the navy are typical examples of senior officers.
Why it matters
They are essential for turning high-level strategy into actual actions on the ground. They bridge the gap between the top commanders and the junior officers leading small units.
Easy to mix up
Do not confuse them with junior officers, who lead small teams, or general officers, who hold the highest command.