 Although it is unknown who was responsible for the decision to abort the plan of attacking the Piraeus, certain scholars claim that Thucydides, in his "History of the Peloponnesian War", implies Cnemus was responsible.When the Spartans attacked, they took the Athenians by surprise, capturing three Athenian ships and wreaking damage throughout the island.However, the Salaminians were able to send a signal to Athens, notifying them of the attack.