This casual encounter produced important results. The enemy, disheartened by the repulse, proceeded towards the north, keeping near the Grampian Hills; and General Mackay with 1400 horse and dragoons marched along the plains at the base of the hills, to restrain the enemy from descending. In this service the FOURTH HORSE were subject to many harassing marches and counter-marches. By day the troops were perpetually in motion; during the night they lay in the fields in a body; and their commander having no confidence in the reports of the country people, who were nearly all hostile to the existing government, he was continually sending out small parties throughout the night to procure intelligence. At length the enemy retreated over the mountains by paths inaccessible to cavalry, and many of the Highlanders proceeded to their homes. The regiment having sustained considerable loss in this campaign from fatigue and privation, particularly in horses, marched into England to recruit, and was quartered at Warwick and Stratford-upon-Avon. [Sidenote: 1690] Having completed its ranks to the numbers borne on the establishment, the regiment marched to the vicinity of the metropolis, and in June, 1690, it furnished a relay of escorts to attend the King to Highlake, in Cheshire, where His Majesty embarked for Ireland, in order to rescue that kingdom from the power of King James. The regiment was subsequently employed in assisting the Life Guards in their attendance on the court; for several months it furnished a daily guard for the Queen-Dowager, at Windsor; and one troop afterwards accompanied Her Majesty to Newmarket. [Sidenote: 1691] From the south of England the regiment marched in the spring of 1691 to Lancashire; but it returned to the south in November of the same year, and on the 25th of that month received orders to embark for foreign service. King William was actively engaged in a war with Louis XIV., who used every means to promote the aggrandizement of France. The FOURTH HORSE formed part of a reinforcement sent to the British army on the Continent; and, after landing at Williamstadt in North Brabant, they marched to Flanders, and went into village cantonments. [Sidenote: 1692] On the 23rd of January, 1692, John Lord Berkeley was appointed Colonel of the regiment, in succession to Lord Colchester, who was promoted to the command of the Third Troop of Life Guards.[16]