line-officer

Every officer sent to be on the inspection teams would be a spook, perhaps with the odd line-officer thrown in to take note of things that only an operator would notice.

The Cardinal of the Kremlin Clancy, Tom, 1947- 1988

The old line-officer was loath to give equal place to the engineer, who, when he was young, was but an auxiliary, an experiment.

VII. The Clash of War 1904

The field-officers, of course, were mounted, but every line-officer marched afoot with his men, except that three horses had been picked up at the railway and impressed by the quartermaster in case of need, and these were assigned to the captains who happened to command the skirmishers and flankers.

From the Ranks Charles King 1888