 He ordered Baron Riedesel, who commanded the rear of the army, to abandon outposts from Skenesboro south, and then had the army cross the Hudson just north of Saratoga between September 13 and 15.The Continental Army had been in a slow retreat since Burgoyne's capture of Ticonderoga early in July, under the command of Major General Philip Schuyler, and was encamped south of Stillwater, New York.On August 19, Major General Horatio Gates assumed command from Schuyler, whose political fortunes had fallen over the loss of Ticonderoga and the ensuing retreat.