The Enemy of My Enemy

A prophecy was predicted several years ago. Years later, the Prophecy has been repeated and the battle lines have been drawn. Harry finds courage in places he had never looked before. When the ones he finds himself closest to are attacked, will he rely on those he hadn't counted as friends before to help him defeat his enemy, or will he attempt to go forth on his own? ((Also G/D and R/L...AU since HBP))