the British infantry assault on the German positions north of the Somme began at 0730 hrs on 1 July 1916. A force of some 120,000 British soldiers of Fourth and Third Armies assaulted the German line between Maricourt and Gommecourt. Their attack was pressed home with great resolution - and at considerable cost. By the end of that day, 19,240 men had been killed outright and the total casualty figure, including the missing and those taken prisoner-of-war, amounted to 57,470 men.