Obviously either the corn is too high, so they can't see teh way home, and walk around in circles forever...

Soldier: Are we there yet?
General: No.
Soldier: Are we there yet?
General: No.
Soldier: Are we there yet?
General: NO, for the love of Neptune, we are not there yet!!
Soldier: Erm...are we there yet?

Or, all of the alcohol, tea and biscuits went to their heads, and killed off the few working brain cells they had...

Soldier: Duuur....how do we get home boss?
General: Errrr....i'm not too sure of that. Oh look, a butterfly.
Soldier: Eher, pretty colours...