Where did Britain and France face an uninterrupted line of entrenched German forces , from Lorraine to where ?
A General Staff was formed in 1910 but the , Lieutenant - Général Harry Jungbluth was retired on 30 June 1912 and not replaced until May 1914 by Lieutenant - General Chevalier de Selliers de Moranville who began planning for the concentration of the army and met railway officials on 29 July .