お手数ですが、次の英文を訳して下さい。
Tactical developments
The preliminary operation to capture Messines ridge (7–14 June) had been followed by a strategic pause as the British repaired their communications behind Messines ridge, completed the building of the infrastructure necessary for a much larger force in the Ypres area and moved troops and equipment north from the Arras front. After delays caused by local conditions, the Battles of Ypres had begun on 31 July with the Battle of Pilckem Ridge, which was a substantial local success for the British, taking a large amount of ground and inflicting many casualties on the German defenders. The German defence had nonetheless recovered some of the lost ground in the middle of the attack front and restricted the British advance on the Gheluvelt Plateau further south. British attacks had then been seriously hampered by unseasonal heavy rain during August and had not been able to retain much of the additional ground captured on the plateau on 10, 16–18, 22–24 and 27 August due to the determined German defence, mud and poor visibility.
Sir Douglas Haig ordered artillery to be transferred from the southern flank of the Second Army and more artillery to be brought into Flanders from the armies further south, to increase the weight of the attack on the Gheluvelt Plateau. The principal role was changed from the Fifth to the Second Army and the boundary between the Second and Fifth armies was moved north towards the Ypres–Roulers railway, to narrow the frontages of the Second Army divisions on the Gheluvelt Plateau. A pause in British attacks was used to reorganise and to improve supply routes behind the front line, to carry forward 54,572 long tons (55,448 t) of ammunition above normal expenditure, guns were moved forward to new positions and the infantry and artillery reinforcements which arrived, practised for the next attack. The unseasonal rains stopped, the ground began to dry and the cessation of British attacks misled the Germans, who risked moving some units away from Flanders.
