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The Peninsula Campaign |
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| March 17-July 2, 1862 |
Impatient with the inactivity of the Union Army of the Potomac, President Lincoln ordered its commander to begin offensive operations against Richmond, VA, the Confederate capital. By late March the Federal army (100,000+ men - MG George B. McClellan, commanding) began a slow but steady advance up the Virginia Peninsula toward its ultimate objective: Richmond. Confederate forces (55,000+ men - GEN Joseph E. Johnston, overall command) confronted the overly cautious McClellan in a series of delaying actions at Yorktown and Williamsburg. After the indecisive Battle of Seven Pines (Fair Oaks) on 31 May-1 June, GEN Robert E. Lee succeeded the severely wounded Johnston. Lee, for the first time, assumed command of the major field force soon to be known as the Army of Northern Virginia. Lee's army (72,000+ men) would push McClellan's troops back from the outskirts of Richmond during the Seven Days Campaign (Seven Days Battles). Estimated Casualties (Seven Pines only): Union - 5,031+; Confederate - 6,134+.
Notes:
Numbers in parentheses reflect estimated strength of armies or units.
Estimated casualty figures are totals for killed, wounded, missing in action, and taken prisoner.
Alternative names of battles and campaigns appear in parentheses.
Military and naval rank abbreviations in text: LT - Lieutenant, CPT - Captain, MAJ - Major, LTC - Lieutenant Colonel, CDR - Commander (Navy), COL - Colonel, BG - Brigadier General, MG - Major General, RADM - Rear Admiral (Navy), LTG - Lieutenant General, VADM - Vice Admiral (Navy), and GEN - General.
Army Organization: Although authorized and actual strength and the rank of the commanding officer often varied, the standard military unit during the War was the infantry regiment (1,000 men, COL commanding) which was comprised of 10 companies (100 men each, CPT commanding). 3-4 Regiments = 1 Brigade (3,000-4000 men, BG commanding). 3 (sometimes 4) Brigades = 1 Division (9000-12,000 men, BG or MG commanding). 2-4 (usually 3) Divisions = 1 Corps (18,000-24,000+ men, MG - North and MG or LTG -South commanding). 2 or more Corps = An Army (usually 20,000-100,000+ men - MG, LTG, or GEN commanding). 2 or more Armies = An Army Group (usually 100,000+ men - MG, LTG, or GEN commanding).
Sources:
Atlas for the American Civil War, The West Point Military History Series, 1986.
Battle Cry of Freedom: The Civil War Era, by James M. McPherson. 1988.
Battlefields of the Civil War, by Roger W. Hicks and Frances E. Schultz. 1989.
The Centennial History of the Civil War, 3 Vols., by Bruce Catton. 1961-65.
The Civil War (Series), Editors of Time-Life Books. 1983.
The Civil War: A Narrative, 3 Vols., by Shelby Foote. 1958-1974.
The Civil War: An Illustrated History, by Geoffrey C. Ward with Ric Burns and Ken Burns. 1990.
The Civil War Battlefield Guide, Ed. by Frances H. Kennedy. 1990.
The Civil War Day by Day: An Almanac, by E.B. Long with Barbara Long. 1971.
The Encyclopedia of Military History, Second Rev. Ed., by R. Ernest Dupuy and Trevor N. Dupuy. 1986.
West Point Atlas of American Wars, Vol. I, Ed. by Vincent J. Esposito. 1959.
Who Was Who in the Civil War, by Stewart Sifakis. 1988.
Photographs courtesy of The Generals of the American Civil War Website.
