During all these operations the Belgian army, now at Antwerp, had harassed the German troops by frequent sorties. The capture of the city was at once undertaken by the German Staff, following the stalemate created by the operations at the Aisne.
The Germans, having failed in their first enveloping movement, attempted a second after the battle of the Marne. They tried to repeat their maneuver of August, endeavoring to overwhelm the French left; while the French, on their side, tried to overwhelm the German right. Each of these armies, by a converging movement, gradually drew its forces toward the west. No sooner did the Germans bring up a new corps on their right than the French brought up another on their left. Thus the front of the battle ascended more and more to the west and north until arriving at the sea it could go no farther. This is what has been called by French military critics "The Race to the Sea." In this race to the sea the Germans had a great advantage over the French. A glance at the map is enough to make it understood. The concave form of the German front made the lines of transportation shorter; they were within the interior of the angle, while the French were at the exterior. On the German side this movement drew into the line more than eighteen army corps, or twelve active corps, six reserve corps, and four cavalry corps.
[Illustration: These German soldiers are dragging a great siege gun into position for use in refortifying the city of Antwerp.]
On the French side it resulted in the posting of the army of Castelnau on the left of Manoury's army, in the deployment of the army of General de Maud'huy to the left of the army of Castelnau, in the transference of the British army to the left of the army of Maud'huy, in the relegation of the army of Urbal to the left of the British army, the army of Urbal being later flanked by the Belgian army which came out of Antwerp. In order to accomplish this new and extended disposition of forces the French General Staff was compelled to reduce to their extreme limits the effective strengths of the armies of the east and of the Oise, and as a result to make the maximum use of the means of transport. In this it succeeded. When the great battle of Flanders was waged toward the end of October, the Germans, trying to turn the French left and to pierce it, found themselves facing considerable French forces, which, allied with the British and Belgian armies, completely barred the passage against them.