resigned owing to Constantine's opposition to his policy, had at the Greek general election in June secured nearly a two to one majority in the Greek Chamber. Greece could not be allowed the benefit of a Prussian queen when it chose Venizelos as Prime Minister. The bond had been signed between the Central Empires and their Bulgarian taskmaster; but the doctrine of rebus sic stantibus was as well understood in Bulgaria as in Prussia, and the treaty would have remained a scrap of paper had Russia expelled the German invaders or Britain broken the barrier at the Dardanlles. As it was, nothing occurred in August or September to weaken Bulgaria's fidelity to the secret compact. The failure of the attack at Suvla Bay was followed by the futile routine of trench warfare; an equally barren result threatened the long-prepared attacks in Artois and Champagne; and, Russia having more than enough to do in reorganizing her shaken armies, the Central Empires were free to turn their attention southwards. Success in the Balkans was not this time to be staked on Austrian control, and Mackensen, whose armies in Galicia were nearest to the scene, was naturally selected to repeat in Serbia the triumphs of his Galician drive. The task would be all the easier because Serbia was a country small compared with Russia, and would, moreover, be distracted by the coming Bulgarian stab in the back. Her Government, conscious of this danger, had, indeed, wished to anticipate it by a frontal attack on Bulgaria; but her offensive was vetoed by the Entente. Possibly it was a case in which moral scruples unduly weighted the scales against military advantage. There was no real doubt about Bulgaria's intentions, and she would have had no grounds for complaint had Serbia attacked before Mackensen was prepared for his part in the joint assassination. The real doubt concerned the attitude of Greece. She was bound by treaty to assist Serbia in that case, and Venizelos would assuredly do his best to fulfil the bond. But the obligation would not arise if Serbia were the aggressor, and Venizelos would be powerless. The fault of the Entente, if it was a fault, lay in the failure to act on the presumption that Constantine would prove as false to international obligation as his imperial brother-in-law when he invaded Belgium, and in the assumption that the difference between Serbian aggression and defence would involve the difference between Greece being an ally and a neutral.