 It formed part of 4th AA Division.At this point the Gun Defended Area (GDA) around Liverpool had a strength of just 19 Heavy AA (HAA) guns (3-inch, 3.7-inch and 4.5-inch), plus three guns out of action.During the period of the Phoney War, the AA defences of NW England were not tested in action, and the time was spent in equipping and training the TA units.