The fact that the names of Captain Nathan Brittles and Sgts Tyree and Quincannon have passed, not just into the mythology of the American western, but of movies themselves is testament to the iconic status of Ford's 1949 masterpiece, the second and best of what became known as his cavalry trilogy. That their names are also burned into our collective cinematic consciousness is also testament to the performances of John Wayne, Ben Johnson and Victor McLaglen who are all at their best here and yet are only part of a great ensemble that also includes that very fine and undervalued actress Joanne Dru as well as Mildred Natwick, John Agar, Harry Carey Jr and Arthur Shields.
The period is the Indian Wars that followed from the massacre of General Custer and Ford filmed it mostly in his beloved Monument Valley. It is largely devoid of the sentimentality of "Rio Grande" though it is never as dark nor as serious as "Fort Apache", (it straddles the middle-ground magnificently; even the comic fight scene doesn't sit uncomfortably), and while Ford may make the Indians the villains of the piece he nevertheless bestows on them a kind of dignity and some degree of respect. Ford's sentimentality isn't necessarily for the cavalry but for the passing of the 'old' West and the loss of Native American culture