History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
the rest took to flight over the mountains.
But as the roads had already been occupied, and as, moreover, the Amphilochians were well acquainted with their own country and were light infantry opposing heavy-armed troops, whereas the Ambraciots were ignorant of the country and did not know which way to turn, under these circumstances the fleeing men fell into ravines and into ambushes which had previously been set for them and perished.