On 6 July, Joffre had visited Fayolle and discussed bringing the cavalry close to the front to exploit success and on 8 July, Foch, commander of (GAN, Northern Army Group), ordered Fayolle to reinforce the success of the corps south of the Somme for an attack on 20 July, while defending north of the river. After the British victory of the Battle of Bazentin Ridge Joffre directed Foch to co-ordinate broad-front attacks with the British, who were making the main effort, to force the Germans to spread their artillery-fire and infantry over a wider front. Foch ordered the attack to be extended north of the river, although the transfer of artillery had put the main weight of the attack on the south side. In mid-July, the British Expeditionary Force (BEF) General Headquarters (GHQ) received intelligence reports of "demoralisation and confusion" among the German defenders but a recovery was noted within three days, particularly due to improvements in the flow of supplies to the German front line.