▁country . ▁However , ▁on ▁the ▁out break ▁of ▁war ▁on ▁ 4 ▁August ▁ 1 9 1 4 , ▁many ▁members ▁volunte ered ▁for ▁Imperial ▁Service . ▁ ▁Therefore , ▁T F ▁units ▁were ▁split ▁into ▁ 1 st ▁Line ▁( li able ▁for ▁over se as ▁service ) ▁and ▁ 2 nd ▁Line ▁( home ▁service ▁for ▁those ▁unable ▁or ▁unw illing ▁to ▁serve ▁over se as ) ▁units . ▁▁ 2 nd ▁Line ▁units ▁performed ▁the ▁home ▁defence ▁role , ▁although ▁in ▁fact ▁most ▁of ▁these ▁were ▁also ▁posted ▁abroad ▁in ▁due ▁course . ▁▁ 1 / 1 st ▁Ber k shire ▁The ▁ 1 st ▁Line ▁battery ▁was ▁emb od ied ▁with ▁the ▁ 2 nd ▁South ▁Mid land ▁Mount ed ▁Brigade ▁on ▁ 4 ▁August ▁ 1 9 1 4 ▁at ▁the ▁out break ▁of ▁the ▁First ▁World ▁War . ▁ ▁Initial ly , ▁the ▁brig ade ▁concentr ated ▁in ▁Ber k shire ▁and ▁on ▁ 5 ▁August ▁ 1 9 1 4 ▁was ▁assigned ▁to ▁the ▁ 1 st ▁Mount ed ▁Division . ▁ ▁A ▁decision ▁was ▁made ▁to ▁form ▁a ▁new ▁mounted ▁division ▁from ▁the ▁mounted ▁brig ades ▁in ▁and ▁around ▁the ▁Ch urn ▁area ▁of ▁Ber k shire . ▁ ▁On ▁ 2 ▁September ▁ 1 9 1 4 , ▁ 2 nd ▁Mount ed ▁Division , ▁with ▁Head quarters ▁at ▁G oring , ▁came ▁into ▁being ▁and ▁ 2 nd ▁South ▁Mid land ▁Mount ed ▁Brigade ▁was ▁transferred ▁to ▁the ▁new ▁division . ▁