Controlling enormously superior forces , he made his advance late in the season and surprised the Austrians .
In the north , the Austrian siege of Lille had completely failed , and Dumouriez now resumed his interrupted scheme for the invasion of the Netherlands .
Controlling enormously superior forces , Dumouriez made Dumouriez 's advance late in the season and surprised the Austrian .
In the north , the Austrian siege of Lille had completely failed , and Dumouriez now resumed his interrupted scheme for the invasion of the Netherlands .