And when the hosts advanced, sweeping from the north of Paris to the east, it was Galliéni who saw the fault and determined to profit by it. Von Kluck had disregarded the Paris army either through ignorance or temerity, and he was to pay the price. The Governor collected an army from here, there and everywhere, placed it under a superb tactician, General Maunoury, and at the critical moment carried it to the field of battle. Our "intellectual general," as Gabriele d’Annunzio calls him, combined activity with perception. There was something Napoleonic and something Parisian, too, in his notion of utilising taximeters to carry soldiers to the German right wing, which, threatened, had reinforced itself with a _corps d’armée_ and now seemed likely to envelop the French left. Up aloft Von Kluck’s airmen decided that the Parisians were leaving their city by the thousand in taxicabs. It was Galliéni’s army of Zouaves and Territorials hurrying out to strike a rapid and decisive blow at the invaders. When Von Kluck marched straight upon Paris as if to devour it and turned aside to the south-east, he gave Galliéni, as we have said, the opportunity he sought. It is, of course, wrong to assume that the Germans suddenly changed their plan; this was not so, unless they wished to fly in the face of all accepted rules of war. It is highly dangerous to neglect one’s main objective, the crushing of an enemy, for a subsidiary one. And if the Germans had entered Paris without defeating the Allies, they would have committed a heavy blunder. Heaven-born commanders like Napoleon could afford to take the risks and by their genius escape; lesser men have to abide by the rules of the game. Yet the Germans, proud in their superiority of numbers and equipment, might have supposed that they could detach part of their forces to finish off the Allies and with the remainder occupy the city. After all, strategy is a matter of common sense, and the plain man can see the danger to a general of entering a city whilst his enemy is at large, powerful enough to imprison him within the walls and to cut his communications. To a strategist of Galliéni’s calibre the problem was perfectly clear.