▁S ina i ▁and ▁Palest ine ▁Camp aign , ▁from ▁ 1 9 1 5 ▁to ▁ 1 9 1 8 . ▁ ▁A ▁second ▁line ▁battery , ▁ 2 / 1 st ▁Ber k shire ▁R HA , ▁served ▁on ▁the ▁Western ▁Front ▁in ▁ 1 9 1 7 ▁and ▁ 1 9 1 8 ▁as ▁part ▁of ▁an ▁Army ▁Field ▁Art illery ▁Brigade . ▁ ▁After ▁the ▁Arm ist ice , ▁it ▁was ▁reconst it uted ▁as ▁a ▁Royal ▁Field ▁Art illery ▁battery ▁of ▁the ▁Territ orial ▁Army ▁( TA ), ▁later ▁being ▁expanded ▁into ▁a ▁full ▁heavy ▁anti - air craft ▁( H AA ) ▁regiment ▁that ▁served ▁during ▁World ▁War ▁II ▁in ▁the ▁Battle ▁of ▁Britain ▁and ▁Bl itz , ▁in ▁the ▁assault ▁land ings ▁in ▁North ▁Africa ▁( Operation ▁Tor ch ), ▁Sic ily ▁( Operation ▁Hus ky ) ▁and ▁Italy ▁( Operation ▁A val anche ). ▁Post war , ▁it ▁continued ▁in ▁the ▁T A ▁until ▁ 1 9 6 8 . ▁ ▁Form ation ▁The ▁Territ orial ▁Force ▁( TF ) ▁was ▁formed ▁on ▁ 1 ▁April ▁ 1 9 0 8 ▁following ▁the ▁en act ment ▁of ▁the ▁Territ orial ▁and ▁Reserve ▁Forces ▁Act ▁ 1 9 0 7 ▁( 7 ▁Ed w . 7 , ▁c . 9 ) ▁which ▁combined ▁and ▁re - organ ised ▁the ▁old ▁Vol unte er ▁Force , ▁the ▁Hon ou rable ▁Art illery ▁Company ▁and ▁the ▁Ye oman ry . ▁ ▁On ▁formation , ▁the ▁T F ▁contained