Still incredulous as to the existence of an army of reserve, Melas was bending every energy to capture Genoa and to force the crossings of the Var. In the engagements and battles with Masséna and Suchet, the army of Melas, which originally numbered one hundred and twenty thousand, had been reduced to one hundred thousand men. These troops were greatly scattered. On the 13th of May they were thus stationed: thirty thousand under General Ott were besieging Genoa; twenty-five thousand under General Elsnitz were fighting Suchet along the Var; ten thousand under General Vukassovich were watching the Italian entrances of the St. Gothard and Simplon passes; three thousand, commanded by General Haddick, were in the lower valley of the Aosta, watching the St. Bernard passes; five thousand, commanded by General Kaim, were occupying Susa at the foot of the Mont Cenis Pass; and two thousand were scattered along the Maritime Alps near the Tenda Pass. In addition, six thousand were on their way from Tuscany to re-enforce Melas; three thousand remained in Tuscany, and sixteen thousand more occupied Alessandria, the fortresses of Tortona and Mantua, and various other garrisons of northern Italy. Such was the situation of the Austrians when, on the 21st of May, Melas received information of the passage of French troops over the Great St. Bernard. Immediately he collected ten thousand soldiers from the Austrian forces in front of Suchet and in the vicinity of the Tenda Pass, and marched on Turin. At first, he believed that the French troops appearing in Italy were merely a detachment sent thither to harass his rear; but at Coni, where he arrived on the 22d of May, he learned to a certainty that Bonaparte himself was in Italy; that the French soldiers were already issuing into the plains of Piedmont; and that the First Consul had with him both cannon and cavalry. Melas was surprised. He knew not what to do. Having been repeatedly informed by his own spies, and even by the Aulic Council, that the Army of Reserve was a mere fiction, he could now hardly bring himself to believe that it was a reality. It might, after all, be but a large detachment; for how could Bonaparte cross the Alps with an army? How could he pass Fort Bard with cannon and cavalry? It must be remembered, too, that at this time Melas had not learned that Moncey was marching on Milan. As yet, therefore, he was not completely undeceived. He knew that a French force was at the foot of the Mont Cenis Pass, and that French troops were issuing from the valley of the Aosta into the plains of Piedmont; but he did not know the number of the French forces nor did he know the intentions of Bonaparte. Consequently he delayed issuing the orders for the concentration of his scattered troops.