Nevertheless the conviction that, whether we or the Germans attacked, they had double our casualties, comforted the public during the war of trenches; not merely were we holding our own while our reserves in training were mounting to millions, but all the time we were thought to be wearing down the enemy's strength, and his prudent economy in the use of men and munitions was taken as proof of his poverty in resources. His real work in those winter months was done behind the lines in factory and in barracks, and its value was tested and revealed in the coming campaign, which found the front in the West almost precisely where it was left to the autumn. Here and there a village or a line of trenches had been taken, but by different sides, and the balance was hardly worth counting. A sand-dune was captured near Nieuport, a trench in front of St. Eloi, and ten days' fighting round La Bassée, which severely tried the Indian troops, nearly led to the loss of Givenchy, but quite to the gain of a brickfield. Early in December the French took the château of Vermelles and improved their positions at Lihons and Quesnoy, but suffered in January a reverse north of Vailly. In Champagne they captured Perthes in February and made some progress in the Argonne; in the Woevre they nibbled at both sides of the St. Mihiel wedge, while in Alsace they acquired Steinbach but lost the Hartmannsweilerkopf. But against this balance of gain must be set a more subtle but comprehensive loss. The contest was not limited to the occasional bursts of fighting or to the steady endurance required for holding the trenches amid the discomfort of mud and water, bombs and shell-fire. It also took the form of incessant competition in the perfection of surface and underground defences. The Germans excelled in this art; but even if they had not, the silent development of the strength of defence would have told in the defenders' favour when the time came for attack; and it was an advantage which told all along the line and more than atoned for the local loss of a trench or position. The truth was that during a seeming stalemate the Germans made ample provision for holding their lines in the West while they prepared and dealt a staggering blow at their formidable foe in the East.