LINE OFFICER

an executive on a command line who receives orders from his seniors and relays these in turn down the line to his juniors. He sends data and compliances up the line to his seniors as required.

n.LRH def. the people who in navies run ships. In the military they handle troops and regiments and they are actually the people who have to get the work done and have to get promotion out and have to get the thing on the road. And they have to get the battle won and so forth. That's what you mean by line officer.