This is a tribute to both Chimaira and the Star Wars movies. Chimaira is my favorite band and I love Star Wars and this combination of the two enhances both the song and the scenes in the movie.
The song is called Empire, from the Chimaira album Resurrection. The scenes in the video were taken from Star Wars Episodes I-VI. I caught a very strong Star Wars vibe from the song, and I don't know if that's what Mark Hunter intended when he wrote the lyrics, but this is how I interpreted them.