German II Bavarian and XIV Reserve corps pushed back a French Territorial division from Bapaume and advanced towards Bray-sur-Somme and Albert. From the French XXI and X Corps north of the Somme, with support on the right flank by the 81st, 82nd, 84th and 88th Territorial divisions and the 1st, 3rd, 5th and 10th Cavalry divisions of the French II Cavalry Corps, defended the approaches to Albert. On 28 September, the French were able to stop the German advance on a line from Maricourt to Fricourt and Thiepval. The German II Cavalry Corps was stopped near Arras by the French cavalry. On 29 September, Joffre added X Corps, north of Amiens, to the French II Cavalry Corps south-east of Arras and a provisional corps (General Victor d'Urbal), which had a Reserve division in Arras and one in Lens, to a new Tenth Army. Second phase 4–15 October First Battle of Arras, 1–4 October On 1 October, the French at Arras were pushed back from Guémappe, Wancourt and Monchy-le-Preux, until the arrival of X Corps. By 1 October, two more French corps, three infantry and two cavalry divisions had been sent northwards to Amiens, Arras, Lens and Lille, which increased the Second Army to eight corps, along a front of . Joffre ordered Castelnau to operate defensively, while Maud'huy and the advanced on Arras. On 28 September, Falkenhayn had ordered the 6th Army to conduct an offensive by the IV, Guard and I Bavarian corps near Arras and more offensives further north. Rupprecht intended to halt the French west of Arras and envelop them around the north side of the city. On 1 October, the French attacked to the south-east, expecting only by a cavalry screen. The Germans attacked from Arras to Douai on 1 October, forestalling the French. On 3 October, Rupprecht reinforced the 6th Army north of Arras and ordered the IV Cavalry Corps from Valenciennes to Lille. From German attacks on Arras and the vicinity were costly failures. On 4 October, German troops entered Lens, Souchez, Neuville-Saint-Vaast and gained a footing on the Lorette Spur. German attacks were made from the north of Arras to reach the Scarpe but were eventually repulsed by X Corps. By 4 October, German troops had also reached Givenchy-en-Gohelle and on the right flank of the French further south, the Territorial divisions were separated from X Corps, prompting Castelnau and Maud'huy to recommend