Powerful Al Hanissim, Likkutei Sichos, Chelek Lamed, page 209. In this sicha we dive into the wording of Al Hanissim and all the miracles "(1)You delivered the mighty into the hands of the weak, (2)the many into the hands of the few, (3)the impure into the hands of the pure, (4)the wicked into the hands of the righteous, and (4)the wanton sinners into the hands of those who occupy themselves with Your Torah." The first two relate to yidden & Greeks, the latter 3 are within yiddin themselves. Very powerful and relevant sicha for our shlichus in life!