SPARTAN , also known as Codename: GLORY is a SPARTAN-X member in the UNSC Oonsk Navy. He is a specialized person in Leadership, close-quarters combat, sword-fighting Sacrifice and Speech Generation. He is the commander of the SPARTAN-X Company, a company of his own which comprises of many other low-ranked SPARTAN-Xs.
Leonidas is considered as one of the best humans to have ever born, with ultra-high intelligence, detective skills, eyesight, strength, stamina, agility, reflexes, etc. before his amazing and unparalleled augmentations. He has fought in many wars and battles, the most famous one being the Battle of Reach. Selected as the lead commander of the highly, totally, fully, secretive SPARTAN-X program as the age of 7, Leonidas grew up to be a very cool Spartan and soldier and human and Ceph who would 'pwn' all sorts of enemies, from Grunts to huge-ass CCS-class battleships of the Covenant. He currently serves the UNSC Naval Special Mega Awesome Warfare of the SPARTANS. He is quite known for his charging cry in battles, one that will make them piss in their pants highly lift the spirits of the soldiers and give them a sense of destroying the enemy once and for all and peacefully returning to their homes.
Born on Earth in the city of New York, Leonidas was since his childhood a psychopathic murderer very good, almost perfect, in almost everything; speed, height, fighting skills, intelligence, looks, eyesight, strength, everything. He was the perfect human ever born. But however, his parents and family members did not realize at as they were not freaking biological scientists.
Leonidas was always known as a leader to others, often winning competitions just for lol's sake. His abilities caught the attention of some scientists in UNSC, along with other children all over Earth, although Leonidas was the best of them all. Thus, the scientists went to Vice Admiral Parangosky for yet another secret super-soldier program, and Parangosky approved, because why not? Thus, all the children were taken away from their home with the promise of giving them unlimited free candies making them into super-soldiers, and were recruited into the SPARTAN-X PROGRAM.
The SPARTAN-X Program was a highly-secretive and unknown program in the Section Zero, Office of Naval Intelligence, United Nations Space Command Navy, United Nations Space Command branch. It was aimed to create still more Spartans for playing Jenga saving humanity. The project was originally suggested by Sir Chuck Norris the CDXX, a great and renowned scientist of the United Nations Space Command who originally noticed Leonidas' great and cool skills, and soon 299 other kids, all of them who were young boys because screw feminists.
They were taken from their homes and given intensive training and drills, to make them tougher, stronger, faster, harder, bigger, greater, cooler and turn them into the perfect-est soldiers ever to defend humanity from the alien Covenant's threat; they were even deemed better than the SPARTAN-IIs themselves because they had larger d***s superior skills. The trainees were frequently given vacations to go meet their parents but were asked to come back without any delay after the vacations ended. In fact, not one kid tried to escape the program, because they were too interested.
After all the years of gambling and winning intense hardships and training, the SPARTAN-Xs were sent for the augmentations, which would make them for the same purpose they were trained for; saving humanity. None of the trainees had died or been crippled, all of them had successfully passed their final tests into becoming SPARTANs. Sir Norris was very happy with the results and was given a promotion to "Head of all the UNSC Technicians and Scientists all over the friggin' universe". Alas, the future was really bright for Chuck Norris
Leonidas as since his graduation fought in over thousands of battles, even though there were only hundreds of battles since his graduation because small skirmishes are counted, even Nerf Wars too. He was participated in, not limited to, Battle of Eridanus, Battle of Reach, Battle of Sigma Octanus IV, Battle of Circumstance, Battle of Tribute, Battle of Mars, Battle of Harvest, Battle of Deston, Battle of Template:Tt, Battle of Mamore, Battle of Venezia, Battle of Draetheus V, Battle of Falaknuma, Battle of Madrigal, Battle of Erdenet, Battle of Emerald Cove, Battle of Cygnus, Battle of Concord, Battle of Bhuj and uncountable more battlesTemplate:File
Leonidas is known to lead his army of Spartans directly into battle, charging even before the other UNSC personnel get ready. Before the battles, Leonidas is known to give such speeches, that would move anybody, even the Covenant themselves or your poor old granny into fighting the Covenant, as seen in one such instance in the photo. That's one huge reason why he's so popular among girls renowned across the UNSC fleets and other areas.
Besides, Leonidas combat history isn't displayed here because n00bs like you do not deserve to know about it. Git gud.
Leonidas was known to be a great leader, in fact, the best leader ever known to humanity, the Covenant, or any other species, including Moa. His tactics on the battlefield were hugely unorthodox methods, all of which he thought of on the sopt, which shows his incredibly high intelligence perspicacity. He was also the best speech giver ever known to the galaxy, using very rarely used words such that the listener wouldn't understand and in the rage fight the enemy brutally.
He also loved to sport a classic "Sparta" beard.
Although he generally doesn't respect Achilles the Great, he wears the ACHILLES-class Mjolnir armor because it is greek.