how the Naxians became aware of the invasion, but undoubtedly they were aware, and began to make preparations. Herodotus tells us that the Naxians had previously had no inkling of the expedition, but that when news arrived they brought everything in from the fields, gathered enough food with which to survive a siege and reinforced their walls. Opposing forces Herodotus does not provide complete numbers for either side, but gives some idea of the strength of the two forces. Clearly, since they were fighting on home territory, the Naxian forces could theoretically have included the whole population. Herodotus says in his narrative that the "Naxians have eight thousand men that bear shields", which suggests that there were 8,000 men capable of equipping themselves as hoplites. These men would have formed a strong backbone to the Naxian resistance. The Persian force was primarily based around 200 triremes. It is not clear whether there were additional transport ships. The standard complement of a trireme was 200 men, including 14 marines. In the second Persian invasion of Greece, each Persian ship had carried thirty extra marines, and this was probably also true in the first invasion when the whole invasion force was apparently carried in triremes. Furthermore, the Chian ships at the Battle of Lade also carried 40 marines each. This suggests that a trireme could probably carry a maximum of 40–45 soldiers—triremes seem to have been easily destabilised by extra weight. If the Persian force at Naxos was similarly made up, then it would have contained somewhere in the region of 8,000 to 9,000 soldiers (in addition to many unarmed rowers). Siege When the Ionians and Persians arrived at Naxos, they were faced by a well-fortified and supplied city. Herodotus does not explicitly say, but this was presumably the eponymous capital of Naxos. He provides few details of the military actions that ensued, although there is a suggestion that there was an initial assault on the city, which was repelled. The Ionians and Persians thus settled down to besiege the city. However, after four months, the Persians had run out of money, with Aristagoras also spending a great deal. Thoroughly demoralised, the expedition prepared to return to Asia Minor empty handed. Before leaving, they built a stronghold for the exiled Naxian aristocrats on the island. This was a typical strategy in the Greek world for those exiled by internal strife, giving them