sentences:  The Spartan garrison at Nisaea surrendered, but the Athenians were unable to capture Megara itself, and were compelled to withdraw when the Brasidas arrived to relieve the Megarans.Hippocrates then commanded an Athenian force which invaded Boeotia.Hippocrates was given command of the land force that was to take Delium and he succeeded in doing so and fortifying a garrison there.