This study is for veterans with chronic low back pain (cLBP). Chronic means the pain has lasted a long time, usually over six months. The study will compare different ways to treat this pain without surgery or medication. In the first step, participants try one of three treatments: continued care and monitoring (CCAM), internet-based pain self-management (Pain EASE), or an enhanced physical therapy program. If the first treatment doesn't work well, participants can choose from yoga, spinal manipulation therapy (SMT), or cognitive behavioral therapy (CBT) in the second step. The study will check how well these treatments reduce pain interference, which is how much pain affects daily activities, using a questionnaire called the Brief Pain Inventory (BPI).

• The study lasts for one year, with follow-ups to see how well the treatments work over time.
• Participants will be chosen from 20 VA centers and can receive treatment in-person or online.
• Eligibility includes having cLBP for 6 months and being a veteran aged 18 or older.