Firstly, the Somme was a strategic offensive that was intended to relieve pressure on the French at Verdun and to breakthrough the German lines. The offensive was successful in achieving these objectives, with the British and French forces advancing 6 miles on a 12-mile front. Secondly, Haig was not the only commander responsible for the offensive, with French commander-in-chief Joseph Joffre also playing a role. Thirdly, the offensive was planned and executed by a number of different commanders, not just Haig. Fourthly, the offensive was hampered by a number of factors beyond Haig's control, such as the wet weather which made conditions difficult for the troops. Finally, the offensive resulted in significant casualties on both sides, with over 400,000 British and French soldiers killed or wounded.