 In addition, the German soldiers were backed by a substantial reserve of the Landwehr (Territorial defence), with 340,000 men, and an additional reserve of 400,000 territorial guards.The French army arrived at the frontier equipped with maps of Germany, but without maps of France—where the actual fighting took place—and without a specific plan of what it was going to do.On 2 August, Napoleon and the Prince Imperial accompanied the army as it made a tentative crossing of the German border toward the city of Saarbrücken.