▁of ▁heavy ▁AA ▁art illery ▁reg iments ▁based ▁in ▁Kent . ▁It ▁was ▁serving ▁in ▁ 6 ▁AA ▁Division , ▁which ▁was ▁formed ▁on ▁ 3 0 ▁May ▁ 1 9 3 9 ▁to ▁take ▁responsibility ▁for ▁the ▁air ▁defence ▁of ▁the ▁Th ames ▁Est u ary , ▁Es sex ▁and ▁Kent . ▁▁▁ 5 5 th ▁( K ent ) ▁Anti - A ircraft ▁Regiment , ▁RA ▁ ▁New ▁ 3 0 7 th ▁B atter y ▁formed ▁at ▁Tun bridge ▁Well s ▁▁ 2 0 5 th ▁B atter y ▁transferred ▁to ▁ 8 9 th ▁H AA ▁Regiment ▁▁ 5 8 th ▁( K ent ) ▁Anti - A ircraft ▁Regiment , ▁RA ▁ ▁New ▁ 2 6 4 th ▁B atter y ▁formed ▁at ▁D art ford ▁ 7 5 th ▁( Home ▁Count ies ) ▁( C in que ▁Port s ) ▁Anti - A ircraft ▁Regiment , ▁RA ▁( TA ). ▁H AA ▁Regiment ▁converted ▁from ▁field ▁art illery ▁in ▁ 1 9 3 8 . ▁ ▁H Q ▁at ▁D over ▁▁ 2 2 3 rd ▁( C in que ▁Port s ) ▁B atter y ▁at ▁Fol k estone ▁▁ 2 3 3 rd ▁( K ent ) ▁B atter y ▁at ▁D over ▁▁ 3 0 6 th ▁B atter y ▁at ▁Ash ford , ▁Kent ▁ 8 9 th ▁( C in que ▁Port s ) ▁Anti - A ircraft ▁Regiment , ▁RA ▁( TA ). ▁H AA ▁Regiment ▁raised ▁as ▁duplicate ▁of