Just read in Tim Travers' book on Diggers on the Western Front bout how, on 11 Aug 1918, Haig, his Chief of Staff, a few other high-ranking British generals, Monash, Blamey, the 5 Australian divisional commanders, and Canada's Currie, plus a couple of high-ranking french officials all gathered for a meeting at Villers-Bretonneux. The author speculated that a well-placed German bomb or shell on that date could well have reversed the entire Black Day experienced on 8 Aug. WI such an event had occurred, with so many high-ranking British, Dominion and French commanders either killed or incapacitated at that crucial stage of the final battles on the Western Front ? How much of a benefit would Germany ahve experienced either short-term or long-term from such a fortunate (for them) strike on the other side's top brass ?