Well, we ask people, Are you the enemy? And whoever says yes, we shoot them.

— Adrian Cronauer (Robin Williams)

7 seconds sound clip from the Good Morning, Vietnam movie soundboard.

You can hear this line at 00:55:39 in the Blu-ray version of the movie.

Quote context

[...]

- Vee.

- Again, we've got our friend from military intelligence.

- Can you tell us what you've found out about the enemy since you've been here?

- We found out that we can't find them. They're out there, and we're having a major difficulty in finding the enemy.

- Well, what do you use to look for them?

- Well, we ask people, Are you the enemy? And whoever says yes, we shoot them.

- It's very difficult to find a Vietnamese man named Charlie.

- They're all named Nyugen or Doh or things like that. It's very difficult for me.

- Thank you. Is it true that you've actually...?

- You're actually too close to some of the nerve agents they were testing?

[...]