The Battle of Westport, sometimes referred to as the "Gettysburg of the West," was fought on October 23, 1864, in modern Kansas City, Missouri, during the American Civil War. Union forces under Major General Samuel R. Curtis decisively defeated an outnumbered Confederate force under Major General Sterling Price. This engagement was the turning point of Price's Missouri Expedition, forcing his army to retreat and ending the last significant Confederate operation west of the Mississippi River. This battle was one of the largest to be fought west of the Mississippi River, with over 30,000 men engaged.