Joint French-British offensive to relieve pressure on Verdun
More than 300,000 wounded or killed with the Germans suffering equally
Haig's expectations of casualties exceeded reality
Expected 40,000 casualties in 3 days but in actuality, 58,000 lost on the 1st day (1st July), 20,000 were killed
Total British casualties were over 400,000, French casualties of 194,000 with the Germans suffering roughly ½ a million
Despite limited gains, new warfare strategies emerged