In mid-January 1943 , 120th HAA Rgt left 26 AA Bde .
In mid-January 1943 , 120th HAA Rgt came under WO Control to mobilise as a defended ports unit .
In mid-January 1943 , 120th HAA Rgt left 26 AA Bde and came under WO Control to mobilise as a defended ports unit .