In the bloodier summer of 1862, President Abraham Lincoln called for 300,000 additional Union volunteers, and patriotic immigrants became an important source of recruits. To encourage enlistments, former German revolutionary Franz Sigel was named to lead the First Corps in Gen. John Pope's new Army of Virginia. Although the corps contained no more than 50 percent foreign troops, drawn from Gen. Louis Blenker's all-German division, the leadership of Sigel and fellow ex-revolutionaries including Gen. Carl Schurz and Col. Alexander Schimmelfenning, along with officers bearing clearly foreign names such as Col. Wladimir Krzyzanowski and Col. Gustave P. Cluseret, fostered a stereotype among native-born Americans that the corps was made up of many funny-talking immigrants. That image was reinforced by the use of German in camp and battle, beer wagons following the troops, and German-language versions of patriotic songs. Sigel entered Rappahannock County from the Luray Valley through Thornton Gap, arriving in Sperryville on July 10 with two divisions under Schurz and Gen. Robert C. Schenck, and the corps stayed in the county for a month. Schurz's division camped here, Schenck's camped along the low ridge in the distance, officers occupied all the buildings in town and many nearby farms, huge bull's-eyes were set on either side of Turkey Mountain for target practice, and drills and reviews were held in the large fields across the Thornton River.