how about leonidas,the spartan.who fended off 250000 persians with his 4000 greeks for 4 days at thermopylae???later when he was outflanked(courtesy a greek traitor)he sent back most of other greeks leaving just the 300 spartans.they repulsed attack upon attack from 10000 persians(their best troops-"the immortals")before sheer superiority of opponents numbers caught up with them.persians won that engagement with 4000 dead.but it was a decisive stand made by leonidas,as it pumped up greek morale and resulted in subsequent persian defeat at plateae.he showed to the world what a small disciplined battle hardened force could do against a much larger force.that may have been inspiration to alexander who defeated darius-3 with 30000 men against 120000.