Meanwhile, the Corinthians, though they had been the first to set the Argeians in motion, nevertheless thought it right, before enrolling themselves publicly in the new alliance, to invite a congress of Peloponnesian malcontents to Corinth. It was the Mantineians who made the first application to Argos under the notice just issued. And here we are admitted to a partial view of the relations among the secondary and interior states of Peloponnesus. Mantineia and Tegea, being conterminous as well as the two most considerable states in Arcadia, were in perpetual rivalry, which had shown itself only a year and a half before in a bloody but indecisive battle.[21] Tegea, situated on the frontiers of Laconia, and oligarchically governed, was tenaciously attached to Sparta: while for that very reason, as well as from the democratical character of her government, Mantineia was less so, though she was still enrolled in and acted as a member of the Peloponnesian confederacy. She had recently conquered for herself[22] a little empire in her own neighborhood, composed of village districts in Arcadia, reckoned as her subject allies, and comrades in her ranks at the last battle with Tegea. This conquest had been made even during the continuance of the war with Athens; a period when the lesser states of Peloponnesus generally, and even subject-states as against their own imperial states, were under the guarantee of the confederacy, to which they were required to render their unpaid service against the common enemy; so that she was apprehensive of Lacedæmonian interference at the request and for the emancipation of these subjects, who lay, moreover, near to the borders of Laconia. Such interference would probably have been invoked earlier; only that Sparta had been under pressing embarrassments—and farther, had assembled no general muster of the confederacy against Athens—ever since the disaster in Sphakteria. But now she had her hands free, together with a good pretext as well as motive for interference. [21] Thucyd. iv, 134. [22] Thucyd. v, 29. τοῖς γὰρ Μαντινεῦσι μέρος τι τῆς Ἀρκαδίας κατέστραπτο ὑπήκοον, ἔτι τοῦ πρὸς Ἀθηναίους πολέμου ὄντος, καὶ ἐνόμιζον οὐ περιόψεσθαι σφᾶς τοὺς Λακεδαιμονίους ἄρχειν, ἐπειδὴ καὶ σχολὴν ἦγον. As to the way in which the agreement of the members of the confederacy modified the relations between subordinate and imperial states, see farther on, pages 25 and 26, in the case of Elis and Lepreum.