He was a railway executive and engineer until the outbreak of the American Civil War in 1861. Early in the conflict, McClellan was appointed to the rank of major general and played an …

In the spring of 1862, McClellan was removed as General-in-Chief, though he retained command of the Army of the Potomac. Facing great pressure from Lincoln, he launched a campaign …

Nov 29, 2025 · George B. McClellan was a general who skillfully reorganized Union forces in the first year of the American Civil War (1861–65) but drew wide criticism for repeatedly failing to …

Nov 9, 2009 · George McClellan was a U.S. Army engineer, railroad president and politician who served as a major general during the Civil War. McClellan was well liked by his men, but his …

Jul 24, 2025 · George McClellan was one of the most controversial generals of the American Civil War. Known for organizing the Army of the Potomac, McClellan earned praise from superiors …

Feb 27, 2025 · Biography of George B. McClellan, General-in-Chief of all U.S. armies, who also commanded the Army of the Potomac during the Civil War.

Dec 22, 2021 · George B. McClellan was a major general in the Union army during the American Civil War (1861–1865). Styled the “Young Napoleon” by the press, his battlefield successes …