Had this measure been left to itself it is probable that it would have answered sufficiently well the purposes of the peace party, since it allowed them time for consultation and organization, which was all they really required. Bradford and his friends knew this, and were bent on forcing the country into their own support; Bradford therefore conceived the ingenious idea of stopping the mail and seizing the letters which might have been written from Pittsburg and Washington to Philadelphia. This was done on the 26th by a cousin of Bradford, who stopped the post near Greensburg, about thirty miles east of Pittsburg, and took out the two packages. In the Pittsburg package were found several letters from Pittsburg people, the publication of which roused great offence against them, and, what was of more consequence, carried consternation among the timid. It was the beginning of a system of terror. Certainly Bradford showed energy and ability in conducting his campaign, at least as considered from Brackenridge's point of view. His stroke at the peace party through the mail-robbery was instantly followed up by another, much more serious and thoroughly effective. On the 28th July he with six others, among whom was James Marshall, issued a circular letter, in which, after announcing that the intercepted letters contained secrets hostile to their interest, they declared that things had now "come to that crisis that every citizen must express his sentiments, not by his words but by his actions." This letter, directed to the officers of the militia, was in the form of an order to march on the 1st August, with as many of their command as possible, fully armed and equipped, with four days' provision, to the usual rendezvous of the militia at Braddock's Field. This was levying war on a complete scale, but it was well understood that the chief object was to overawe opposition, more especially in Pittsburg, although the Federal garrison and stores in that city were also aimed at. The order met with strong resistance, and under the earnest remonstrances of James Ross and other prominent men, in a meeting at Washington, even Marshall was compelled to retract and assent to a countermand. But, notwithstanding their opposition, the popular vehemence in Washington County was such that it was decided to go forward, and, after a moment's wavering, Bradford became again the loudest of the insurgent leaders.