On the 26th of September, its deployment beyond the mountains was complete, and as Napoleon did not know of Mack's intention to stay at Ulm and had learned that the Russian advance had been delayed, he directed his columns by the following roads on the Danube, between Donauworth and Ingolstadt, so as to be in a position to intervene between the Austrians and the Russians and beat both in detail.
Napoleon's object being surprise, all the cavalry except a few vedettes were kept back behind the leading infantry columns and these latter were ordered to advance, on the signal being given, in " masses of manoeuvre, " so as to crush at once any outpost resistance which was calculated upon the time required for the deployment of ordinary marching columns.
But in forests and snowdrifts the French made such slow progress that no sufficient deployment could be made until darkness put a stop to the fighting.
A chain of forts to the eastward is designed to facilitate the deployment of an army, concentrated within the fortified region, towards the Belgian frontier.
The original scheme for the strategic deployment worked out by Moltke as part of the routine of his office contemplated a defence of the kingdom against not only the whole standing army of Austria, but against 35,000 Saxons, 95,000 unorganized Bavarians and other South Germans, and 60,000 Hanoverians, Hessians, &c., and to meet these he had two corps (VII.