During the depth of the winter, when the Germans had retreated, DOUGLAS' Regiment[57] was placed, with several other corps, under the orders of the Marquis of Vaubrun, and engaged in the siege of _Dachstein_, a town in the department of the Lower Rhine. The trenches were opened during the night of the 25th of January, 1675; and during the night of the 28th, DOUGLAS' veterans were engaged in storming the works, and lost several officers and men. Amongst the killed was the Major of the regiment, who is stated by the French historians to have been an officer of great merit. On the following day the governor surrendered the town, when the regiment was sent into quarters. It again took the field in the month of May, and was encamped for a short time near Strasburg; at the same time the Germans, under the Count de Montecuculi, menaced the city of Philipsburg with a siege; but the French and British forces passed the Rhine on the 7th of June, when the Germans changed their position, and the two armies confronted each other, and manœuvred for several days in the territory bordering on the Rhine. DOUGLAS' Regiment, having been on a detached service for some time, was suddenly ordered to join the main army, from whence it was afterwards sent to _Treves_ to reinforce the garrison. Several sharp skirmishes occurred; and on the 27th of July, as Marshal Turenne was reconnoitring the enemy, he was killed by a cannon-ball. After the death of this celebrated veteran, the army was commanded _ad interim_ by the Count de Lorge, who retreated across the _Rhine_. The Germans attacked their adversaries while making this retrograde movement, when the gallant conduct of two battalions of veteran Scots saved the main army from a severe loss. _Treves_ was afterwards besieged by the Germans, and DOUGLAS' Regiment highly distinguished itself in the defence of this ancient city, under the command of Marshal de Crequi. The French troops mutinied, and endeavoured to compel the governor to surrender, but DOUGLAS' Scots stood by the Marshal in the desperate defence of the town, and were thanked for their conduct by Louis XIV. Treves was surrendered on the 5th of September, and the regiment was bound by the articles not to serve for three months, either in the field or in the defence of any town. [Sidenote: 1676]