It doesn't take long for anyone to identify Metallica's 'One' as a song of war. The opening sounds of helicopters and artillery drive home the point quickly and the machine gun-like guitar and drum parts also sell the story.

For inspiration, the band pulled from the 1939 novel 'Johnny Got His Gun,' which tells the story of a soldier hit by an artillery shell who loses his limbs and ability to communicate while his mind inside functions perfectly. For the video, the band included scenes and dialogue from the 1971 adaptation of the novel.