Towards the beginning of the Second Punic War on 21 June 217 BC, a Carthaginian force under Hannibal launched a vicious ambush on a Roman army commanded by Gaius Flaminius.

The resulting battle, at Lake Trasimene in Italy, saw a complete capitulation of the Roman forces - with thousands of legionaries meeting their end at the bottom of the blood-sopped waters.

In this episode - part of our special miniseries on Hannibal's wars with Rome - Tristan is joined by Dr Louis Rawlings from Cardiff University to discover more about the terror of Trasimene.

Produced by Annie Coloe. Edited by Aidan Lonergan.

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