 It was the second battle between the French Army of the Danube , commanded by Jean @-@ Baptiste Jourdan , and the Habsburg Army under Archduke Charles ; the armies had met a few days earlier , 20 – 22 March , on the marshy fields southeast of Ostrach and the Pfullendorf heights . The Austrian Army 's superior strength , almost three @-@ to @-@ one , forced the French to withdraw . 
