 When the Allies failed to commit to this, the Athenian fleet refused to join the Allied navy in the spring.The navy, now under the command of the Spartan king Leotychides, stationed itself off Delos, while the remnants of the Persian fleet remained off Samos, both sides unwilling to risk battle.Similarly, Mardonius remained in Thessaly, knowing an attack on the Isthmus was pointless, while the Allies refused to send an army outside the Peloponnese.