Today is Independence Day in the United States. As we celebrate the day, it is important to remember those who have made independence possible. Arlington: Field of Honor is a National Geographic film that tells the story of Arlington and stories of heroes buried there. The film is available for free viewing on Snag Films and is embedded below.

Here are some related resources that may be of interest to you:
The Civil War in Four Minutes
American History in Video
American President – An Online Reference