By the 1970s, the Stasi had decided that the methods of overt persecution that had been employed up to that time, such as arrest and torture, were too crude and obvious. It was realised that psychological harassment was far less likely to be recognised for what it was, so its victims, and their supporters, were less likely to be provoked into active resistance, given that they would often not be aware of the source of their problems, or even its exact nature. Zersetzung was designed to side-track and "switch off" perceived enemies so that they would lose the will to continue any "inappropriate" activities.
Thus the principle ever since followed—uniform coat and variegated facings—was established. Little or nothing of sentiment led to this. By choice or convenience the majority of the corps out of which the New Model Army was formed had come to be dressed in red, with facings according to the colonel's taste, and it is a curious fact that in Austria sixty years afterwards events took the same course. The colonels there uniformed their men as they saw fit had, by tacit consent, probably to obtain "wholesale " prices, agreed upon a serviceable colour (pearl grey), and when in 1707 Prince Eugene procured the issue of uniform regulations, few line regiments had to be re-clothed. In France, as in England and Austria, the cavalry, as yet rather led by the wealthy classes than officered by the professional, was not uniformed upon an army system until after the infantry. But in 1688 six-sevenths of the French cavalry was uniformed in light grey with red facings; and about half the dragoon regiments had red uniforms and blue facings. The Marquis of Louvois , in creating a standing army, had introduced an infantry uniform as a necessary consequence. The native French regiments had light grey coats, the Swiss red, the German black and the Italian blue, with various facings. The French grey was probably decided upon, like the Austrian grey, as being a good "service" colour, which could be cheaply manufactured.