A lochos, plural lochoi (Ancient Greek: λόχος, romanized: lokhos; pl. λόχοι, lokhoi), is a tactical sub unit of Classical Greece and of the modern Greek army. The term derived from the ancient Greek for ambush and the men carrying out the ambush, but in practice, its meaning was essentially that of "war-band", a body of armed men. This translation has been used traditionally, e.g. for the Sacred Band of Thebes.