▁AA ▁Command ▁was ▁re le asing ▁man power ▁for ▁the ▁planned ▁Al lied ▁invasion ▁of ▁contin ental ▁Europe ▁and ▁ 9 0 th ▁H AA ▁and ▁ 4 th ▁L AA ▁Reg iments ▁joined ▁Second ▁Army ▁to ▁prepare ▁for ▁the ▁Norm andy ▁Land ings ▁( Operation ▁Over l ord ). ▁Although ▁many ▁reg iments ▁were ▁reduced ▁by ▁one ▁or ▁more ▁batter ies , ▁there ▁were ▁few ▁other ▁changes ▁to ▁the ▁brig ade ' s ▁order ▁of ▁battle ▁in ▁the ▁early ▁part ▁of ▁ 1 9 4 4 : ▁▁ 9 7 th ▁L AA ▁R gt : ▁joined ▁May ▁ 1 9 4 4 , ▁left ▁July ▁ 1 9 4 4 . ▁▁ 2 3 2 , ▁ 3 0 1 , ▁ 4 8 0 ▁L AA ▁B t ys ▁ 1 4 4 th ▁L AA ▁R gt : ▁joined ▁by ▁October 1 9 4 4 . ▁▁ 4 1 4 , ▁ 4 3 1 ▁L AA ▁B t ys ▁ ▁By ▁October ▁ 1 9 4 4 , ▁the ▁brig ade ' s ▁H Q ▁establishment ▁was ▁ 9 ▁officers , ▁ 8 ▁male ▁other ▁ranks ▁and ▁ 2 4 , ▁female , ▁members ▁of ▁the ▁A ux ili ary ▁Territ orial ▁Service ▁( AT S ), ▁together ▁with ▁a ▁small ▁number ▁of ▁attached ▁drivers , ▁cook s ▁and ▁mess ▁order lies ▁( male ▁and ▁female ). ▁In ▁addition ▁the ▁brig ade ▁had ▁a ▁M ixed ▁signal ▁office ▁section ▁of ▁ 1 ▁officer , ▁ 5 ▁male ▁other