him, had had a decisive effect on the battle. He did receive a brevet promotion to lieutenant colonel in the regular army, probably based solely on the inflated claims of his battle report, which were not substantiated by the reports of other generals. At the Battle of Chancellorsville, Pleasonton continued his practice of self-promotion. He claimed that he temporarily halted an attack by Stonewall Jackson's Corps and that he was able to prevent the total destruction of the Union XI Corps on May 2, 1863. He was persuasive enough that the commander of the Army of the Potomac, Maj. Gen. Joseph Hooker, told President Abraham Lincoln that Pleasonton "saved the Union Army" at Chancellorsville. Battle reports, however, indicate that Pleasonton's role was considerably less important than he claimed, involving only a small detachment of Confederate infantry on Hazel Grove. Nevertheless, his claims earned him an appointment to the grade of major general of volunteers on and to rank from June 22, 1863, and when the inept Cavalry Corps commander, Maj. Gen. George Stoneman, was relieved after Chancellorsville, Hooker named Pleasonton as his temporary replacement. Pleasonton could not accept even this elevated role gracefully. He wrote to Gen. Hooker "I cannot ... remain silent as to the unsatisfactory condition in which I find this corps ... the responsibility of its present state ... does not belong to me." Gettysburg Pleasonton's first combat in his new role was a month later in the Gettysburg campaign. He led Union cavalry forces in the Battle of Brandy Station, the largest predominantly cavalry battle of the war. The Union cavalry essentially stumbled into J. E. B. Stuart's Confederate cavalry and the 14-hour battle was bloody but inconclusive, although Stuart was embarrassed that he had been surprised and the Union horsemen had a newfound confidence in their abilities. Subordinate officers criticized Pleasonton for not aggressively defeating Stuart at Brandy Station. Gen. Hooker had ordered Pleasonton to "disperse and destroy" the Confederate cavalry near Culpeper, Virginia, but Pleasonton claimed that he had only been ordered to make a "reconnaissance in force toward Culpeper", thus rationalizing his actions. In the remainder of the Gettysburg Campaign up to the climactic battle, Pleasonton did not perform as a competent cavalry commander and was generally unable to inform his commander where the enemy troops were located and what their intentions were. The Army of Northern Virginia, under Gen. Robert E. Lee,