"FOWARD MARCH!"
The drill sergeant, Hreth, was committed to training these keyblade wielders and making them into respectable soldiers. Many were convinced that a kayblade army was unnecessary, however he lived by the motto, "Better safe, than sorry." Everyone in the world thought that a few keyblade masters could without doubt subdue the dark wielders. Hundreds of years later, it would be proven that only one with a pure heart was necessary.
He trained his soldiers with the belief that there was a dark army. None of them questioned his motive. To be quite honest, he knew he didn't have a motive. All he cared about was making sure that everyone in the world was protected from any amount of darkness.
Of course, whenever you believe in a lie enough, it eventually becomes the truth. In training these men for war, he had turned some of them into soldiers of darkness. These wielders controlled the evil Xarnok that now riddled these lands. Some of them had felt mistreated, and wanted to defeat him, others had given into the darkness that they had been taught to fight. Those that remained had pure hearts, they would never give into the darkness.
He himself had been taught by the very first keyblade master. The one that had first forged the X-blade. His master had mastered the art of immortality. He had been alive for thousands of years before he had trained Hreth.
Hreth was not a young man. He had aged adequately enough to posses the wisdom in his ever growing mind. At eighty-two, he had seen much, and yet, so little. He had been told stories of the dark wielders and the incredible powers they possessed. He had never seen any sort of evil in all of years. That is, until he began training this army.
Thirty-three years ago he had begun training these keyblade wielders. The mightiest got through initiation. Those with pure hearts remained. The thousands that had departed in the last thirty-three years could not withstand the darkness, and left him for their own selfish purposes. When the first three left, a terrible evil had infected the world. The Xarnok that now plagued the entire world were born just months after the departure of his soldiers. It broke his heart, they had been his favorite wielders. He did not consider them merely soldiers, to him they were his apprentices, training among the soldiers.
They felt differently, however. They had come to him for training, to become as powerful as they could then leave. They were consumed by the intent of world domination.
They had studied science for years, and Hreth had never known. Not until he had confronted the Xarnok. Those disgusting creatures wrought from the shadows. They were their creation.
Yet, Hreth had not seen his students since they left. They battled for days. Three on one, and he had won the small battle. The students were not aiming to defeat him, they just wanted to escape, to go through with their plans. And over the last years they had doubtless recruited many of the soldiers that had left his service.
He knew the ones with black hearts. They lingered in deceit. Their armor a blinding white. Their hair as white. Everything about them was white. Except for the first one. He was completely black. He was like the Xarnok. He could take any form, and move throughout the darkness. His armor was black. Hreth had seen him once since he left. Or, so he thought. It might as well have been a Xarnok. It took on the same figure as this student, Eyith, before he was a shadow. he had defeated it, and saw a pink light drift into the sky. He had no idea what it had been, but it happened with all the Xarnok.
But, now he must focus on the matters at hand. A revolt in the east. The people of Radiant Garden had begun rioting. Displeased with their king, they were determined to remove him from his lofty throne.
Hreth was to check the situation. Analyze the rulings of the king, and suppress the evoked people. He sent for five of his best, and put together a small army. They would depart the next day, and hastily return to his land of birth.