German artillery, when fighting unseasoned American troops, had a
tendency to spread its fire. A reconnaissance officer back from
Tunisia relates that he observed a German battery on a height, shift
its targets rapidly three times up and down the length of a broad
valley, covering each target with short, intense bursts of fire
before moving to another. The effect was to slow up movements and
compel American units to deploy widely and "keep their heads down." Observation
posts were accurately shelled. In such cases, the correct procedure was to
take cover, and reoccupy the post as soon as the shelling ended.