At the same time, Athens orchestrated the creation of an alliance with Euboea, Megara, Achaea, Corinth, Acarnania and other states in the Peloponnese. However the most desirable ally for Athens was Thebes. To secure their allegiance, Demosthenes was sent by Athens, to the Boeotian city; Philip also sent a deputation, but Demosthenes succeeded in securing Thebes' allegiance.* K. Tsatsos, "Demosthenes", 284–285; H. Weil, "Biography of Demosthenes", 41–42.</ref> Demosthenes' oration before the Theban people is not extant and, therefore, the arguments he used to convince the Thebans remain unknown. In any case, the alliance came at a price: Thebes' control of Boeotia was recognised, Thebes was to command solely on land and jointly at sea, and Athens was to pay two thirds of the campaign's cost.