From Thucydides and other sources we know that slaves provided at least some of the power for the triremes on both sides. Their flight in numbers was felt by all to have deleterious effects on their host cities (1.139.2; 7.27.5; 8.40.2). More mundanely, no hoplite army could easily march without a servile baggage corps, who carried both equipment and supplies (7.75.5).
