Fighters under a common banner, old quarrels forgotten, Comanche rides with Arapaho, Apache with Cheyenne.

8 seconds sound clip from the She Wore a Yellow Ribbon movie soundboard.

You can hear this line at 01:28:41.601 in the Blu-ray version of the movie.

Quote context

[...]

- Good-bye, Doc.

- Good-bye, Nathan. And may the road be kind to you.

- Signal smokes. War drums. Feathered bonnets against the Western sky.

- New messiahs. Young leaders are ready to hurl the finest light cavalry in the world against Fort Starke.

- In the Kiowa village, the beat of the drums echoes in the pulse beat of the young braves.

- Fighters under a common banner, old quarrels forgotten, Comanche rides with Arapaho, Apache with Cheyenne.

- All chant of war. War to drive the white man forever from the red man's hunting ground.

(INDIAN MEN CONTINUE CHANTING)

- Only the old men stand silent.

- Even Pony That Walks has been howled down at the council fires.

[...]