Both John and Alexander quickly climbed the ranks until eventually becoming unrivaled in Demonic swordsmanship and Holy and Divine swordsman ship each becoming generals among the two clans where one brother fought none of their enemies remained no-one was a match for either Alexander or John and it was beginning to seem like they might cause the war to end.
However the two brothers failed when the God's decided to do away with Alexander at the same time as the Devil's had decided to do away with John. The two brothers were each sent to the same battlefield on opposing sides during the battle they fought to the death. The battle lasted for one week before Alexander got the upper hand and delivered a fatal sword slash causing the battle to end. However at the end of the battle he realized that it was his brother who he killed but before John died he said "Alexander end the war for humanity I trust in you" on that battlefield Alexander promised to end the war.
At that time Alexander awakened his Dark side and allowed it to consume him but his Light side fought back the Dark side preventing it from consuming Alexander. Alexander left the battlefield and went into isolation where he practiced control of the darkness as he trained to become a demonic swordsman. While he Alexander was in training a new race decided to try it's hand in the war a race the brought destruction were ever they appeared this was the Dragon race. The Dragon race shook the battlefields with their power of destruction. However along with the Dragon race was the sole surviving brother Alexander who managed to harness the destruction becoming a swordsman of destruction he harnessed the darkness becoming a Demonic swordsman he harnessed the Holy and Divine energy becoming a Holy and Divine swordsman as well as mastering the mortal energy becoming the greatest human swordsman.