This research study will evaluate the effectiveness of utilizing Battlefield Acupuncture (BFA) on veterans with with a history of substance use disorder and chronic pain for 8 weeks. Primary Aim: The primary aim of this study is to evaluate the effectiveness of using BFA to treat chronic pain in veterans with a history of substance use disorder. Secondary Aim: This study will also evaluate the impact that BFA treatment for pain may have on subjects' stress, mood and sleep patterns over 8 weeks. In addition, each subject will be complete behavioral research tools to measure: depression, anxiety, and substance use at 3 different points in this study. Hypothesis: The use of BFA on veterans with chronic pain will decrease their pain and substance use and improve their quality of life.