I will fight your battles

"For behold, I do not require at their hands to fight the battles of Zion; for, as I said in a former commandment, even so will I fulfil—I will fight your battles. Behold, the destroyer I have sent forth to destroy and lay waste mine enemies; and not many years hence they shall not be left to pollute mine heritage, and to blaspheme my name upon the lands which I have consecrated for the gathering together of my saints." (D&C 105:14-15)