Reincarnation of The #1 Magic Caster

The continent of Acadia which is named after its continent dragon has 7 major nations represented by 7 dragons. The conflict between these nations have exceeded more than a thousand years with many wars breaking out between them. These wars are fought by the Magic Casters (Also known as Mages) that are regarded as the warriors or the protectors of the nation. When the nation of Wyvern was about to fall, one man defeated all the other Magic Casters and protected the nation of Wyvern alone. Seeing the powers of this Mage, the continent dragon Acadia gave him the title of #1 Mage. He was a legend who alone defended Wyvern and tried to resolve the conflict between these nations. But, he was unable to resolve the conflict and was brutally murdered while attending a banquet for peace negotiations. He has been reincarnated as his younger 14 year old self due to the powers of the God's ring that he possessed. Will he be able to resolve this conflict after being reincarnated or will he fail?