Gen ▁Sir ▁James ▁E . ▁Ed mond s , ▁History ▁of ▁the ▁Great ▁War : ▁Military ▁Oper ations , ▁France ▁and ▁Belg ium , ▁ 1 9 1 6 , ▁Vol ▁I , ▁London : ▁Mac mill an , 1 9 3 2 / W oking : ▁She ar er , ▁ 1 9 8 6 , ▁. ▁ ▁Major ▁L . F . ▁Ell is , ▁History ▁of ▁the ▁Second ▁World ▁War , ▁United ▁Kingdom ▁Military ▁Series : ▁The ▁War ▁in ▁France ▁and ▁Fland ers ▁ 1 9 3 9 – 1 9 4 0 , ▁London : ▁H M ▁Station ery ▁Office , ▁ 1 9 5 4 / U ck field , ▁Naval ▁& ▁Military ▁Press , ▁ 2 0 0 4 . ▁ ▁Major ▁L . F . ▁Ell is , ▁History ▁of ▁the ▁Second ▁World ▁War , ▁United ▁Kingdom ▁Military ▁Series : ▁Vict ory ▁in ▁the ▁West , ▁Vol ▁I : ▁The ▁Battle ▁of ▁Norm andy , ▁London : ▁H M ▁Station ery ▁Office , ▁ 1 9 6 2 / U ck field : ▁Naval ▁& ▁Military , ▁ 2 0 0 4 , ▁. ▁ ▁Gen ▁Sir ▁Martin ▁Far nd ale , ▁History ▁of ▁the ▁Royal ▁Regiment ▁of ▁Art illery : ▁The ▁Years ▁of ▁De fe at : ▁Europe ▁and ▁North ▁Africa , ▁ 1 9 3 9 – 1 9 4 1 , ▁W ool wich : ▁Royal ▁Art illery ▁Institution , ▁ 1 9 8 8 / Lond on : ▁Br asse ys ,