Athens then sent for help from the Carthaginians and Etruscans, and both Athens and Syracuse tried to gain assistance from the Greek cities in Italy. In Corinth, representatives from Syracuse met with Alcibiades, who was working with Sparta. Alcibiades informed Sparta that there would be an invasion of the Peloponnese if Sicily was conquered, and that they should send help to Syracuse and also fortify Decelea near Athens. The Athenians, he said, feared nothing more than the occupation of Decelea. The Spartans took this advice into consideration, and appointed Gylippus to command their fleet.