The wars, which were both a result and cause of Venetian involvement in the power politics of mainland Italy, found Venetian territory extended to the banks of the Adda and involved the rest of Italy in shifting alliances but only minor skirmishing. The shifting counterweight in the balance was the allegiance of Florence, at first allied with Venice against encroachments by Visconti Milan, then switching to ally with Francesco Sforza against the increasing territorial threat of Venice. The Peace of Lodi, concluded in 1454, brought forty years of comparative peace to Northern Italy, as Venetian conflicts focussed elsewhere.