 Musculoskeletal injuries are among the highest frequency injuries in military personnel1. These may result from training exercises, normal job duties, or recreational activities 2. Such injuries may cause reduced levels of performance and therefore decrease military readiness 1. This prospective, randomized, clinical trial compares manualmanipulative therapy MMT and standard care to standard care alone for episodes of low back pain. Patients will be randomized to standard care or standard care plus MMT. Standard care consists of medication prescribed by the credentialed medical provider; MMT will be delivered by the chiropractor physician. The trial time period will be 4 weeks with outcome measurements at intake, 2 weeks, and 4 weeks. Outcome measures include the Visual Analogue Scale VAS for pain, Roland-Morris Low Back Pain and Disability Questionnaire RDQ, the Back Pain Functional Scale for assessing function 3, Global Improvement Questionnaire for patient perception regarding improvement in function, Patient Expectation and Patient Satisfaction Questionnaires to examine patient expectations toward care and reception of that care, and drug use and profiles. The SF-36 will be used to measure the general health component and quality of life of our sample 4. This will be a pragmatic study that will allow us the opportunity to develop further investigations leading to a larger scale and more robust clinical trial. In addition, this study will provide information on the challenges and opportunities involved in conducting clinical research concerning MMT in a military setting and may lead to additional studies at a wider number of bases throughout the US. 