Being new to D&D, I'm very intrigued with damage reduction. Creating a new level 1 fighter, I'm trying to acquire damage reduction, but have been unable to find a way to do it at first level, or a shortest path.
What is the quickest way to gain damage reduction from a character-creation and development standpoint?
I believe we're only using the Core, and Advanced Pathfinder books. Other credible sources would probably be acceptable, however.