General Imhoff was sent with a detachment to Kirchaven on the Orme: and general Gilsoe, with another corps, advanced to the neighbourhood of Hirchfeldt on the Fulda. The former of these having ordered colonel Luckner to scour the country with a body of hussars, that officer, on the twenty-fourth of May, fell in with a French patrole, which gave the alarm at Butzbach; when the garrison of that place, amounting to five hundred piquets, under general Waldemar, fled with great precipitation. Being, however, pursued, and overtaken near a wood, they were routed and dispersed. Colonel Luckner, entering Butzbach, found a considerable quantity of forage, flour, wine, and equipage, belonging to the fugitives. What he could not carry off he distributed among the poor inhabitants, and returned to general Imhoff’s camp at Ameneberg, with about an hundred prisoners. This excursion alarmed the enemy to such a degree, that their whole army was put in motion; and the duke de Broglio in person advanced with a large body of troops as far as Friedberg: but undemanding the allies had not quitted their camp at Fritzlar, he returned to Franckfort, after having cantoned that part of his army in the Wetteraw. This alarm was not so mortifying as the secession of the Wirtemberg troops, amounting to ten thousand men, commanded by their duke in person, who left the French army in disgust, and returned to his own country. The imperial army, under the prince de Deuxponts, quartered at Bamberg, began their march to Naumberg on the twentieth of May: but one of their detachments of cavalry having received a check from a body of Prussians near Lutzen, they fell back; and on the fourth day of June encamped at Litchenfels upon the Maine. The small detachments of the grand armies, as well as those belonging to the bodies commanded by general Sporcken and the count de St. Germain, in the neighbourhood of Dusseldorp, skirmished with various success. The hereditary prince of Brunswick being detached from the allied army, with some battalions of grenadiers, and two regiments of English dragoons, advanced to the country of Fulda, where he was joined by the troops under general Gilsoe, and achieved some inconsiderable exploits, particularly at Hosenfeldt and Zielbach, where he surprised and took divers parties of the enemy.
By the twenty-fourth of June, prince Ferdinand, quitting his situation at Fritzlar, marched to Frillendorf, and encamped on the hills between Ziegenheim and Freysa; general Imhoff commanding at a small distance on the right, and the hereditary prince, now returned from Fulda, being posted on the left of the army. In the meantime, the duke de Broglio, assembling his forces between Merlau and Laubach, advanced to Neustadt, where he encamped on the twenty-eighth day of the month, and at the same time occupied a strong post at Wassenburgh. His intention was to penetrate through the country of Hesse into Hanover, and make himself entirely master of that electorate. With this view he resolved to effect a junction with the count de St. Germain, whom he directed to advance towards Brilau and Corbach; while he himself, decamping from Neustadt on the eighth day of July, advanced by the way of Frankenburg. Prince Ferdinand, having received intelligence that the count de St. Germain was in motion, began his march from Ziegenheim, and on the ninth day of July reached the heights of Bruneau, in the neighbourhood of Wildungen.