Compass Bearing is the direction to an object from a vantage point, as would be indicated by a compass.
Units of Measure
This was expressed in degrees from 0 to 359, or as points on the compass rose (e.g.: North, Northwest, North by East). Sometimes, it was expressed in the old system of Compass Quadrant Bearings, e.g.: 100 degrees would be "South 80 East" and 255 degrees would be "North 5 West". Compass quadrant bearings was falling into disuse as the war approached.