This gallant action on the part of Belgium formed a screen behind which the French troops could mobilize in full order and with a clear knowledge of the intention of the enemy. Already the skies were filled with scouting aircraft and wireless messages buzzed incessantly from the overhead scouts of the movements of the hostile troops rushing from Berlin, from Cologne, from every point of the German Empire to the three frontiers of Luxemburg, Belgium, and France. And, all the while, the band of devoted heroes at Liege held to their ideal of independence, and Belgium grew to be a bigger thing in the eyes of the world, as her territory grew hourly smaller by the encroachment of the German invaders.
French mobilization, in spite of the prompt action in sending the first half million to the front, became disorganized under the discovery of the plans of Germany. It will be remembered that the French railroad systems all center in Paris. Therefore, in order to divert the troops to what was seen to be the point of attack, brigades had to be brought back from the Verdun-Belfort district and transshipped to the north. This, in a word, was the answer to the question why France did not rush to the aid of Belgium and hurl her forces at the Germans at the gates of Liege. For that mobilization they were not ready. The neutrality of Belgium had been considered as a true military barrier.
A glance at the railroad map of France shows how thoroughly (and unwisely) France had trusted to this treaty, the treaty that became famous when it was declared by Germany to be merely a "scrap of paper," for while there are good transport facilities to the Franco-German frontier, there were few to the Franco-Belgian frontier. The motor busses practically saved the day, and nearly all the French troops went to the northern front by this means of transport. Still more difficult was the question of munitions. The German railways brought troops at forty miles an hour, the French lines carried munitions at forty miles per day. For her German frontier she was ready. For this new contingency she was unprepared.
For this unpreparedness France paid dearly. Some of her richest provinces were invaded and held all through the early part of the war by Germany, almost solely because her transportation of troops to the crucial point was not effective. The mere presence of the Germans over so large a section of French territory was due solely to the rapidity of the German mobilization, which was the result of long years of preparation. Even behind the Belgian screen France did not move rapidly enough to save herself, only barely rapidly enough to save Paris. The plan of General Joffre, which entailed a gradual retreat to let the Germans expand far from their base, while the French concentrated between the border and Paris, was a move determined, not by any special theory of war, nor yet by special configuration of the country, but by the slowness of mobilization. The initial success of Germany was a victory of thorough preparedness, the initial defeats of the French army were the results of military preparedness hampered by politics.