Although the office of inspector-general had been bestowed on Conway, he had never entered on its duties, and his promotion to the rank of major-general had given much umbrage to the brigadiers who had been his seniors. That circumstance, in addition to the knowledge of his being in a faction hostile to the Commander-in-Chief, rendered his situation in the army so uncomfortable that he withdrew to Yorktown, in Pennsylvania, which was then the seat of Congress. When the expedition to Canada was abandoned he was not directed, with Lafayette and De Kalb, to rejoin the army. Entertaining no hope of being permitted to exercise the functions of his new office, he resigned his commission about the last of April and, some time afterward, returned to France. [6] On his resignation the Baron Steuben, who had, as a volunteer, performed the duties of inspector-general much to the satisfaction of the Commander-in-Chief and of the army, was, on the recommendation of Washington, appointed to that office, with the rank of major-general, without exciting the slightest murmur. This gentleman was of immense service to the American troops. He established one uniform system of field exercise, and, by his skill and persevering industry, effected important improvements through all ranks of the army during its continuance at Valley Forge. While it was encamped at that place several matters of great interest engaged the attention of Congress. Among them was the stipulation in the convention of Saratoga for the return of the British army to England. Boston was named as the place of embarkation. At the time of the capitulation the difficulty of making that port early in the winter was unknown to General Burgoyne. Consequently, as some time must elapse before a sufficient number of vessels for the transportation of his army could be collected, its embarkation might be delayed until the ensuing spring. On being apprised of this circumstance, Burgoyne applied to Washington, desiring him to change the port of embarkation and to appoint Newport, in Rhode Island, or some other place on the Sound instead of Boston, and, in case this request should not be complied with, soliciting, on account of his health and private business, that the indulgence might be granted to himself and suite. Washington, not thinking himself authorized to decide on such an application, transmitted it to Congress, which took no notice of the matter further than to pass a resolution "That General Washington be directed to inform General Burgoyne that Congress will not receive or consider any proposition for indulgence or altering the terms of the convention of Saratoga, unless immediately addressed to their own body." The application was accordingly made to Congress, who readily complied with the request in so far as it respected himself personally, but refused the indulgence to his troops, and ultimately forbade their embarkation.