 The field guns were in gun pits and could neither be swung to meet close threats, nor easily withdrawn, although some were removed at the trot by their horse teams.Although their observation posts (OPs) were virtually blinded by the mist and their communication links cut by shellfire, many batteries continued firing until overrun.Of the division's own two field brigades, and the two AFAs attached to it (including CCLXXVIII), only six 18-pounders and 4.5-inch howitzers were got away as the Great Retreat began.