The Battle of Le Transloy was the last big attack by the Fourth Army of the British Expeditionary Force (BEF) in the 1916 Battle of the Somme in France, during the First World War. The battle was fought in conjunction with attacks by the French Tenth and Sixth armies on the southern flank and the Reserve/5th Army on the northern flank, against Army Group Rupprecht of Bavaria (Heeresgruppe Rupprecht) created on 28 August. General Ferdinand Foch, commander of groupe des armées du nord (Northern Army Group) and co-ordinator of the armies on the Somme, was unable to continue the sequential attacks of September because persistent rain, mist and fog grounded aircraft, turned the battlefield into a swamp and greatly increased the difficulty of transporting supplies to the front over the roads lan