Lincoln addresses the changes to his positions and actions regarding emancipation in an 1864 letter to Albert G. Hodges. In that letter, Lincoln states his ethical opposition to slavery, writing, "I am naturally anti-slavery. If slavery is not wrong, nothing is wrong. I can not remember when I did not so think, and feel. ... And yet I have never understood that the Presidency conferred upon me an unrestricted right to act officially upon this judgment and feeling." Lincoln further explained that he had eventually determined that military emancipation and the enlistment of black soldiers were necessary for the preservation of the Union, which was his responsibility as President.