Well, how about that?
3 seconds sound clip from the Good Morning, Vietnam movie soundboard.
You can hear this line at 01:36:07 in the Blu-ray version of the movie.
Quote context
[...]
- No. (2)
- Come on, pal, we'll make it.
- Tell me something I don't know, okay?
- How far you think we've gone?
- You think we've reached Cambodia yet?
- How can you fight a war in this shit? I don't know where they are. I don't even know where am.
[...]