Spartans were the ultimate soldier; they trained since they were children and were trained in nothing but war.
They were known throughout the ancient western world for their battle-hardened image and for winning battles against much larger armies, such as the case in the Battle of Thermopylae, the inspiration for the hit film 300. The training regimen of Spartans are the model for the United States Marines.
Source: http://www.aroundgreece.com/ancient-greece-history/sparta-greece.php
Region: Sparta, Ancient Greece
Weapons: Javelin, Spear, Xiphos (Short Sword), Shield
Reign: Bronze Age - 800-500 BC
Key Battles: At the Battle of Thermopylae, 300 Spartans stood up against half a million Persians and, prepared to die, took on their enemies with a legendary ferocity that earned them the title of one of history's greatest warriors. Over a three-day battle, the Spartans killed nearly half of the Persian army.