e moment, at last entered into league with the Chalcidians
and Bottiaeans, and revolted. And Perdiccas induced the Chalcidians to
abandon and demolish their towns on the seaboard and, settling inland at
Olynthus, to make that one city a strong place: meanwhile to those who
followed his advice he gave a part of his territory in Mygdonia round
Lake Bolbe as a place of abode while the war against the Athenians
should last. They accordingly demolished their towns, removed inland and
prepared for war. The thirty ships of the Athenians, arriving before
the Thracian places, found Potidaea and the rest in revolt. Their
commanders, considering it to be quite impossible with their present
force to carry on war with Perdiccas and with the confederate towns
as well turned to Macedonia, their original destination, and, having
established themselves there, carried on war in co-operation with
Philip, and the brothers of Derdas, who had invaded the country from the
interior.

Meanwhile the Corinthians, with Potidaea in revolt and the Athenian
ships on the coast of Macedonia, alarmed for the safety of the place
and thinking its danger theirs, sent volunteers from Corinth, and
mercenaries from the rest of Peloponnese, to the number of sixteen
hundred heavy infantry in all, and four hundred light troops. Aristeus,
son of Adimantus, who was always a steady friend to the Potidaeans, took
command of the expedition, and it was principally for love of him that
most of the men from Corinth volunteered. They arrived in Thrace forty
days after the revolt of Potidaea.

The Athenians also immediately received the news of the revolt of the
cities. On being informed that Aristeus and his reinforcements were on
their way, they sent two thousand heavy infantry of their own citizens
and forty ships against the places in revolt, under the command
of Callias, son of Calliades, and four colleagues. They arrived in
Macedonia first, and found the force of a thousand men that had been
first sent out, just become masters of Therme and besieging Pydna.
Accordingly they also joined in the investment, and besieged Pydna for
a while. Subsequently they came to terms and concluded a forced alliance
with Perdiccas, hastened by the calls of Potidaea and by the arrival of
Aristeus at that place. They withdrew from Macedonia, going to Beroea
and thence to Strepsa, and, after a futile attempt on the latter place,
they pursued by land their march to Potidaea with three t