The Bulgarian problem throughout all that wearisome crisis, which ended by Ferdinand throwing off the mask, was in reality simple, and the known or verifiable facts ought to have been sufficient to bring the judgment of the Entente statesmen to conclusions which would have enabled them to steer clear of the costly blunders that characterized their policy. The line of action followed from first to last by Ferdinand was supremely inelastic: only its manifestations, of which the object was to deceive, were varied and conflicting. It was bound up with Austria's undertaking to restore Macedonia to Bulgaria and to maintain Ferdinand on the throne. This twofold promise was the bait by which the king was caught and kept in Austria's toils, while the Bulgarian people was moved by patriotism to identify its cause with that of Ferdinand. And the arrangement was to my knowledge completed before the opening of the European war. Evidence of its existence was forthcoming, but the statesmen of the Entente, who allowed preconceived notions to overrule the testimony of their senses, declined to accept it. Since then the Bulgarian Cabinet, in the person of the Premier, has publicly admitted the truth of my reiterated statement. In a public speech, delivered in March 1916, "M. Radoslavoff confessed that Bulgaria had entered the war by reason of certain obligations which she had assumed."[104] [104] Cf. _Daily Telegraph_, March 14, 1916, in telegram from Athens. But there was another safe test which the Entente Governments could have applied with profit to the situation. Interest was obviously the mainspring of the Bulgarian nation by whomsoever it might chance to be represented. It would be inconsistent with the conception of international politics to assume any other. Now that interest, it was obvious, could be so fully and rapidly furthered by the Central Empires, and in the judgment of the Bulgars with such finality and at the cost of so few sacrifices, that it was sheer impossible for the Entente Governments to attempt to compete with those. Bulgaria demanded immediate possession of Central Macedonia and the permanent weakening of the Serbian State. And this the Central Empires promised to effect within a few weeks from Bulgaria's entry into the war. Moreover, while asking that she should take part in a struggle against that group of belligerents which she deemed by far the weaker, they undertook to give her the full support of the two greatest military Powers in the world.