query: What was the most important battle in the Civil War?
passage: Battle of Gettysburg
The Battle of Gettysburg (locally /ˈɡɛtɪsbɜːrɡ/(listen))[11] was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. The battle involved the largest number of casualties of the entire war and is often described as the war's turning point.[12][13] Union Maj. Gen. George Meade's Army of the Potomac defeated attacks by Confederate Gen. Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North.
passage: Battle of Cheat Mountain
The Battle of Cheat Mountain, also known as the Battle of Cheat Summit Fort, took place from September 12 to 15, 1861, in Pocahontas County and Randolph County, Virginia (now West Virginia) as part of the Western Virginia Campaign during the American Civil War. It was the first battle of the Civil War in which Robert E. Lee led troops into combat. During the battle, Lee attempted to surround the Union garrison atop Cheat Mountain, but the attack was never launched, due to false information from prisoners and poor communications among the various Confederate commands.