The Battle of the Ancre (13–18 November 1916), was fought by the British Fifth Army, against the German 1st Army. The Reserve Army had been renamed the Fifth Army on 30 October. The battle was the last of the big British attacks of the Battle of the Somme. After the Battle of Flers–Courcelette the Anglo-French armies tried to press their advantage with smaller attacks in quick succession, rather than pausing to regroup and give the Germans time to recover. Subsequent writers gave discrete dates for the Anglo-French battles but there were considerable overlaps and continuities of operations until the weather and supply difficulties in mid-November ended the battle until the new-year.