... receipt of this news, General Fremont hastily fell back upon Strasburg, while McDowell, who had at last witnessed the return of Shields' division to his encampments, and who had already sent that of McCall to join McClellan by water, was waiting in vain for the order to set off on the three or four days march which separated him from the army of the Potomac. The desire to form a new army, which was t...