In today's world of instant world wide communications it is easy to forget just how isolated people on the 'home front' felt during the First World War. Most combat was taking place on the opposite side of the world from New Zealand, and photographs from Gallipoli took six months to arrive and be printed. Even the newsreels showing 'the front' and army camps were screened months after the events happened. So, a glimpse of the men in command of the allied armies provided some sense of control and connection.
General Foch was an innovative commander and one who was big enough to admit mistakes and learn from them. On the 26th of March 1918 this French General was appointed the head of all Allied forces- a big change from the previous squabbling between the British and French commands. Foch's authority did not extend to overruling national commands, but he could at least coordinate strategy and direction of battle and by being the 'head' of all armies he could shelter his subordinate commanders from political interference.