I look forward to the day when we can remove the word "enemy" from our collective vocabularies. The word itself (unfortunately) perpetuates othering, it affirms and continues the violence of labeling. Just think of a day when this verse doesn't even make sense to us, because we have actually been the "peacemakers" we are required to be.
Thanks for posting this, (IMO) there are few more poignant turns of the phrase that represent the very heart of the Gospel. It shows us how little "progress" we've actually made.