Memorial Day, or Decoration Day, was originally created to honor the dead of the Civil War, both Union and Confederate. It has been expanded to the dead of all our wars since then, but we should never forget that origin. After the greatest war in American history, pitting literal brother against brother in many cases, we chose as a nation to honor the dead of both the victors and defeated. Because we wanted to rebuild our shared nation so all of us would prosper. We should never forget that.