It was a possibility not wholly realized, in the years to come, but which did, in the end, help the two sections to become one nation again .
Why: The point the author is trying to make to his readers is that even though Grant and Lee were very different, they wanted to achieve the same goal for America at the time. Grant and Lee both wanted it to be one nation again but how they approached it was different. They also did this without fighting with each other on the differences in their actions. They had created some of the greatest memories in American History all while making the nation one again.