The Battle of Marais des Cygnes (/ˌmɛərdəˈziːn/) took place on October 25, 1864, in Linn County, Kansas, during Price's Missouri Raid in the American Civil War. It is also known as the Battle of Trading Post. In late 1864, Major General Sterling Price invaded the state of Missouri with a cavalry force, attempting to draw Union troops away from the primary theaters of fighting further east. After several victories early in the campaign, Price's Confederate troops were defeated at the Battle of Westport on October 23 near Kansas City, Missouri. The Confederates then withdrew into Kansas, camping along the banks of the Marais des Cygnes River on the night of October 24. Union cavalry pursuers under Brigadier General John B. Sanborn skirmished with Price's rear guard that night, but disengaged