0 a place or building from which you can watch someone, especially an enemy --
Settling into static positions atop the 1500 ft hill, they established a defensive perimeter around the poorly-covered and -concealed hilltop to establish their observation post.
A prominent battery observation post was built and pillboxes were sited on the parapet in order to repel an infantry attack.
However, where frontlines are expected to be stable for a longer time, an observation post (or ground observation post) may develop into a bunker-like installation.
Dismounted operations by armed scouts include observation post manning, reconnaissance of areas not traversable by vehicle, and marking enemy mine fields.
The purpose of the column is not clear, but it would have served as a useful observation post.
A battery observation post and direction range finder were constructed above the magazine.
If used by artillery units it could be remote observation post that observes enemy and guides firing.
Ventilation was provided by an air inlet tower 900 m outside the perimeter of the fort that doubled as an observation post.
