Pleasonton, Alfred,1824–97, Union general in the American Civil War, b. Washington, D.C. He served in the Mexican WarMexican War,
1846–48, armed conflict between the United States and Mexico. Causes
While the immediate cause of the war was the U.S. annexation of Texas (Dec., 1845), other factors had disturbed peaceful relations between the two republics.
..... Click the link for more information. and in the Indian warsIndian wars,
in American history, general term referring to the series of conflicts between Europeans and their descendants and the indigenous peoples of North America. Early Conflicts
..... Click the link for more information. on the frontier. In the Civil WarCivil War,
in U.S. history, conflict (1861–65) between the Northern states (the Union) and the Southern states that seceded from the Union and formed the Confederacy.
..... Click the link for more information. , he distinguished himself in the Peninsular campaign (1862) and was made brigadier general of volunteers. He fought at Antietam and Fredericksburg, and his stand against Stonewall Jackson at Chancellorsville averted a total Union defeat. He commanded the Union cavalry at Brandy StationBrandy Station,
small trading center, Culpeper co., Va. It was the scene of the greatest cavalry engagement of the Civil War (also called the battle of Fleetwood Hill), fought June 9, 1863. Gen. Alfred Pleasonton's Union cavalry surprised Confederate Gen.
..... Click the link for more information. and in the ensuing Gettysburg campaign, as well as later engagements. Transferred to Missouri, Pleasonton defeated Gen. Sterling Price at Westport and Marais des Cygnes (1864), ending the last Confederate threat in the West.
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