I just read the transcript and cannot find what you are referring to ?
http://www.script-o-rama.com/movie_scripts/t/thin-red-line-script-transcript.html
I can’t say for sure without the movie playing but I believe he mumbles between these lines:
NOLTE
And, if possible, you get those men
on the ridge out and moving! Out.
(here)
KOTEAS
One spot’s as good as another, men.
George O
In The Thin Red Line when Elias Koteas’s character hangs up on Nick Nolte’s character after refusing to attack the hill he says a line in Greek. Does anyone know what he says? Because Nick Nolte has the first line in Greek which he translates “rosy fingered dawn” from Homer – setting off a theme about war in the Greek tragic tradition (his is like the rage of Achilles in The Iliad) – and I imagine Koteas’s line is a response (a friend who worked with Koteas said he doesn’t really speak Greek so the line must come from Malick).