 Accordingly, a number of trierarchs and other leaders of the Athenian army at Samos began planning the overthrow of the democracy.They eventually dispatched Peisander to Athens, where, by promising that the return of Alcibiades and an alliance with Persia would follow if the Athenians would replace their democracy with an oligarchy, he persuaded the Athenian "ecclesia" to send him as an emissary to Alcibiades, authorized to make whatever arrangements were necessary.Alcibiades, however, did not succeed in persuading the satrap to ally with the Athenians, and, to hide this fact, demanded (claiming to be speaking for Tissaphernes) greater and greater concessions of them until they finally refused to comply.