"The Birth of a Nation" (1915)

While an argument can be made for the appropriateness one way or another for watching, "Birth of a Nation" on Independence Day, my thoughts aren't so deep. Today's a working holiday. Festivities themselves continue this evening. And it's not evening yet.,

There must be another set of words for the tune I know as "O Tannenbaum"/"O Christmas Tree". Has to be. I can not figure out what the tune has to do with battle scenes otherwise.

Also, I'm not rating this movie. My movie rating sites can just deal with that. The battle scenes alone--for such an early movie (1915)--shows quite the undertaking.