Push 30 miles behind enemy lines, take a bridge held by Germans and then go into a town that we don't know how many German soldiers are guarding.
8 seconds sound clip from the Kelly's Heroes movie soundboard.
You can hear this line at 00:56:07 in the Blu-ray version of the movie.
Quote context
[...]
- All we have to do is get there tomorrow at dawn and we've got ourselves a bridge.
- How about the German Army? Do you think they'd mind us crossing their bridge?
- You know something, Kelly? I think you're crazy.
- Better yet, I think I'm crazy. How did I let you talk these guys into this?
- I figure there's between 30 and 40 troops in that town.
- All right. How did you figure that?
- Well, it's of no military importance. It's not big enough for a garrison.
- You still didn't answer the question, Kelly.
- How did you figure 30 or 40 men?
[...]