The Spartan forces were held up for several days by Theban forces manning the earthen stockades at the perimeter of Theban territory. The Spartans eventually breached the fortifications and entered the Theban countryside, devastating the Theban fields in their wake. Though the Athenians had by this time joined the Theban forces, they were still outnumbered by the Spartans. With the fall of the stockades, they were left with two choices, either to retreat back to the defensible walls of Thebes or to hold their ground and face the Spartans in the open. They chose the latter and arrayed their forces along the crest of a low sloping hill, opposite the Spartan forces. Gorgidas and the Sacred Band occupied the front ranks of the Theban forces on the right, while Chabrias and an experienced force of mercenary hoplites occupied the front ranks of the Athenian forces on the left.