About this time Germany began her preparations for a final attack upon Serbia. Try as the Allies might, they had not been able to force an agreement between Serbia and Bulgaria on the question of the ownership of those parts of Macedonia won from the Turk in the First Balkan War, and taken from the Bulgar by the Serbians in the second. Germany, taking advantage of these irreconcilable differences, was about to launch a heavy attack from the north upon the kingdom of aged Peter. In these circumstances there came before the British Government, in common with the French Government, the question of just how great an obligation rested on the shoulders of the two great powers. Serbia certainly looked to them to assist her with all their strength, and at the height of the agitation Sir Edward Grey made a public declaration that in every circumstance Serbia could look to England for unlimited support. It was when those who knew began to discuss the question of where Great Britain was to find the military force to make good Grey's pledge to Serbia that the Dardanelles campaign came in for hot criticism. It was known that few, if any, fully trained troops were available in England for a fresh campaign. Indeed, as matters ultimately worked out, it was France who found the bulk of the force that was hurried to Saloniki when Bulgaria declared war on Serbia and joined in the Austro-German attack upon the Balkan kingdom. Later, under French pressure, England withdrew 40,000 of her troops from the western front and rushed them off to Saloniki, but much too late to succor Serbia. Finally, so powerful became the influences calling upon the Government to retire from the Dardanelles with as much grace as possible that the opinion of Sir Ian Hamilton was asked. Probably the inside truth of the affair will not be known for some years, but it later developed that there was considerable friction between Sir Ian Hamilton and the British War Office at the time. Sir Ian, it is known, laid a large part of blame for the failure at the Strait to the fact that Earl Kitchener did not send him large reenforcements that were expressly promised. At any rate he was against a withdrawal from Gallipoli in the circumstances and in favor of a swift and overwhelming assault with all the troops and forces that could be gathered. He was still firmly convinced that the forcing of the Dardanelles was possible and probable. Just what were the relations between France and England, and especially how they each regarded the Dardanelles campaign in the winter of 1915, it is impossible to say with any degree of assurance. It is known, however, that there were serious differences of opinion, not only among the more influential men in both Paris and London, but between the two Governments.