 Complete the following phrase:  He served in the Armée du Rhin 1794-95 and entered the General Staff as an adjutant general to Solignac in the Armée dItalie in February 1796. In 1797 he was promoted to capitaine dEtat-major to the army in Italy and in October the following year became first aide de camp to André Masséna in the Armée dHelvétie. He took part in the campaign in the Helvetic Republic and was promoted to Chef dEscadron in the field at the 