The right-hand brigade made Action a decoy attack Attack and the left-hand brigade attacked Attack from the left flank , concealed Hiding_objects by mist .

The 58th Division ascribed Coming_to_believe their success to excellent training Practice , a good creeping barrage and smoke shell , which had thickened Change the mist and blinded Perception_active the German defenders ; gas shell barrages Use_firearm on the German reinforcement routes had depressed Cause_change_of_position_on_a_scale German morale .

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 Attack by the Anglo-French armies achieved Achieve in September , because persistent rain , mist and fog grounded aircraft , turned Change the battlefield Hostile_encounter into a swamp and greatly increased Cause_change_of_position_on_a_scale the difficulty of transporting Military_operation supplies Supply to the front over the few roads in the area and the land that had been devastated Destroying since 1 July .

Due to thick fog and mist in 2008 , the airshow was cancelled Removing , nothing flew Motion .