The whole campaign of 1794 stands apart from that of 1793. The intervening winter was a period during which, if we disregard a number of small actions in which the French took the offensive, nothing of moment was done upon either side, and we must begin our study with the preparations, originating in the month of February, for the active efforts which it was proposed to attempt when the spring should break.
In that month of February, Mack, recently promoted to the rank of Major-General in the Austrian army, met the Duke of York, the young soldier son of George III., in London, to concert the common plan. It was upon the 12th of that month that this meeting took place. Mack brought the news to the British Cabinet that the Emperor of Austria, his master, was prepared to act as Commander-in-Chief of the allied army in the coming campaign, proposed a general plan of advancing from the Belgian frontier upon Paris after the capture of the frontier fortresses, and negotiated for the largest possible British contingent.
Coburg, it was arranged, should be the General in practical command (under the nominal headship of the Emperor). Prussian troops, in excess of the twenty thousand which Prussia owed as a member of the Empire, were obtained upon the promise of a large subsidy from England and Holland, and with the month of April some 120,000 men were holding the line from Treves to the sea. This passed through and occupied Dinant, Bavai, Valenciennes, St Amand, Denain, Tournai, Ypres, and Nieuport. To this number must be added men in the garrisons, perhaps some 40,000 more. Of this long line the strength lay in the centre.
The central army, under the general command of Coburg, who had his headquarters at Valenciennes, was, if we exclude men in garrisons, somewhat over 65,000 in strength, or more than half the whole strength of the long line. With Coburg in the central army was the Duke of York with some 22,000, and the Prince of Orange with a rather smaller contingent of Dutch.
Over against this long line with its heavy central “knot” or bulk of men under Coburg, in the neighbourhood of Valenciennes, the genius of Carnot had mustered over 200,000 French troops, which, when we have deducted various items for garrisons and other services, counted as effective more than 150,000 but less than 160,000 men. This French line extended from the sea to Maubeuge, passing through Dunquerque, Cassel, Lille, Cambrai, and Bouchain.
It was as a fact a little before the opening of April that the French began the campaign by taking the offensive on a large scale upon the 29th of March.
Sketch Map showing the opposing French and Allied lines. April 1794