Civil war western which has the usual John Ford signifiers: manly baritone singing; comical Irish soldiers in a constant search for strong liquor; a gratuitous punch up... and the competing males leads. John Wayne is the veteran cavalry officer leading his column south to sabotage Confederacy railways. He butts heads with an army medic played by William Holden.
Constance Towers is inserted into this confrontation of contrived machismo as a southern aristocrat who has listened in on the cavalry plans and so is taken along to keep her quiet and adorn the horse soldiers with some decorative glamour. She starts off promising ruination on all Union soldiers and ends up falling in love with their Colonel.
The comic tone of the early part of the film gives way to the conflict. But while the battle is photogenic, Ford doesn't reveal much of the human cost. A potentially quite poignant attack by children enlisted into the southern army doesn't extract any sense of absurdity or pity for the horror of war. The scene ends with one of the boy soldiers being spanked.
The actors do well under the circumstances, particularly the urbane Holden who is surprisingly at home in the old west. Ford frames his cavalry soldiers attractively, but there has very little authenticity. There is no impression of poverty or famine, or that the black people the Union soldiers encounter are actually slaves. A lesser John Ford, I suppose, but not untypical.