He was forced to abandon his invasion plans when Prince Charles Alexander of Lorraine, assisted by the veteran Otto Traun, skillfully manoeuvred his army over the Rhine near Philippsburg on July 1, and captured the Lines of Wissembourg.
[1] Although Conti managed to fight his way through the enemy at Wissembourg and posted himself near Strasbourg, Louis XV abandoned the invasion of the Southern Netherlands, and his army moved down to take a decisive part in the war in Alsace and Lorraine.
[2][3] The allies were in their turn dispossessed by Lazare Hoche and Charles Pichegru in a second Battle of Wissembourg on 26 December and forced to retreat behind the Rhine.
The French under General Jean Rapp abandoned the Lines in the night and fell back upon the Forest of Hagenau, occupying the large village of Surbourg.
[8] On 4 August 1870 the Germans under the Crown Prince of Prussia, afterwards the emperor Frederick III, gained the first victory of the war over a French corps (part of the army commanded by Patrice de MacMahon) under General Abel Douay, who was killed early in the engagement.