What is the fine-grained topic of the following text: In 413 BC, Demosthenes accompanied Eurymedon, and a fleet of 73 ships and 5,000 Hoplites to Syracus, in Sicily – where they launched a bold night attack on the Syracusan forces – they had initial success, but the attack later fell into disarray – with the Athenians eventually being routed by the Spartans. Only return the topic.
Demosthenes' Military Campaign in Syracuse, 413 BC