As the Federal army converged on Chancellorsville, General Hooker expected Lee to retreat from his forces, which totaled nearly 115,000. Although heavily outnumbered with just under 60,000 troops - Lee had no intention of retreating. The Confederate commander divided his army: one part remained to guard Fredericksburg, while the other raced west to meet Hooker's advance. When the van of Hooker's column clashed with Confederates. was union victory.
was significant because jackson lost his arm