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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Operations on the Ancre, January–March 1917 ： ウィキペディア英語版 Operations on the Ancre, January–March 1917 After the Battle of the Ancre (13–18 November 1916), British attacks on the Somme front were stopped by the weather. During the rest of 1916 and early January 1917, military operations by both sides were mostly restricted to survival in the rain, snow, fog, mud fields, waterlogged trenches and shell-holes. As preparations for the offensive at Arras continued, the British attempted to keep German attention on the Somme front. The Fifth Army was instructed by Field Marshal Sir Douglas Haig to prepare systematic attacks to capture portions of the German defences. Short advances could progressively uncover the remaining German positions in the Ancre valley, threaten the German hold on the village of Serre to the north and expose German positions beyond to ground observation. Artillery-fire could be directed with greater accuracy by ground observers and make overlooked German defences untenable. A more ambitious plan for the spring, was an attack into the salient that had formed north of Bapaume, during the Battle of the Somme in 1916. The attack was to be directed northwards from the Ancre valley and southwards from the original front line near Arras to meet at St. Léger, as soon as the ground dried and was intended to combine with the effect of the offensive planned at Arras. British operations on the Ancre from 1917, forced the Germans back on a front, ahead of schedule of the Alberich Bewegung ドイツ語:(''Alberich'' Manoeuvre/Operation ドイツ語:''Alberich'') and eventually took On the Germans fell back another on a front. The Germans then withdrew from much of the ドイツ語:''R. I Stellung'' to the ドイツ語:''R. II Stellung'' on 11 March, forestalling a British attack, which went un-noticed by the British until dark on 12 March; the main German withdrawal further south from the Noyon salient to the Hindenburg Line (Operation ドイツ語:''Alberich'') commenced on schedule on 16 March. ==Background== (詳細はウィキペディア（Wikipedia）』 ■ウィキペディアで「Operations on the Ancre, January–March 1917」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.