The Most Important Battle in American History?

George Will examines the importance of the Battle of Gettysburg. An excerpt:

What happened when two armies collided there 150 years ago was, some might argue, not the most important battle in American history or even the Civil War. The 1777 defeat of the British at Saratoga won French support for the American Revolution. The Battle of Antietam (Sept. 17, 1862) enabled Abraham Lincoln to redefine the war by issuing the Emancipation Proclamation. The Battle of Midway sealed Japan’s fate.