It's your army, Mr. Cohill. Good luck.
4 seconds sound clip from the She Wore a Yellow Ribbon movie soundboard.
You can hear this line at 01:38:45.388 in the Blu-ray version of the movie.
Quote context
[...]
- Ah, no casualties, no Indian war, no court-martial.
- You'll have your soldiers follow the hostiles all the way back to the reservation.
- You'll follow a mile behind 'em. Walking hurts their pride. Your watching will hurt it worse.
- Can you read what time it is by my brand-new silver watch?
- It's two minutes past midnight, sir.
- Oh... Been a civilian for two minutes.
- It's your army, Mr. Cohill. Good luck.
- Westward toward the setting sun, which is the end of the trail for all old men.
[...]