It started off looking like a Calvary, Walt Disney Movie...
That's even odder than thinking that Major Dundee is a comedy. Ulzana's Raid is very well the opposite of any Disney movie.
I wouldn't know because i turned it off after a couple of scenes...lol
In the first chase in the film a soldier is driving a woman in a wagon they get chased by a group of natives, they show what anybody with a lick of common sense would probably always ask, why don't the indians shoot one of the horses? They shoot one of the horses, the wagon stops abruptly. The Apaches approach the wagon, the soldier takes out his revolver, and shoots himself in the head rather than get tortured. The woman is left to a fate "worse" than death, as they used to say.
Actually the scene ends a bit different, but I won't spoil it here. That's a very, very powerful scene. And a shocking one. Especially as the scout later explains that the soldier did right.
It's very realistic compared to other cavalry films prior.