Morlot was active in the relief of Landau which successfully resisted a blockade from 20 August until 23 December 1793. Morlot was promoted to general of division on 3 December 1793. At this time, Hoche's "Army of the Moselle" and the "Army of the Rhine" under Jean-Charles Pichegru made a concerted effort to push the invading Prussian and Habsburg armies out of Alsace. In the Second Battle of Wissembourg in December the French armies were victorious.