The goals of this report on injuries to Soldiers engaged in Operation Enduring Freedom are to Describe the relative impact of injuries (battle and non-battle) compared to diseases for calendar year (CY) 2013. Document non-battle injury (NBI) rates and trends from 2003 to 2013. Identify leading causes and diagnoses of NBI for CY 2013. Summarize key U.S. Army Public Health (APHC) CY 2013 analytic deployment surveillance projects on injuries among deployed Soldiers.Make recommendations for the improvement of Army injury prevention based on data analyzed. Routinely collected air evacuation, in-theater hospitalization, and casualty data provide the basis for deployment injury surveillance during Army deployments in support of Operation Enduring Freedom. Non-battle injury (NBI) was notably the most significant cause of medical air evacuations. As in previous years, the proportion of air-evacuated NBIs was larger than that of battle injuries (BIs) and any other single category of disease. Unlike previous annual reports, NBI was the leading cause of Operation Enduring Freedom hospitalizations while BI was the second leading cause. The leading causes of these NBIs indicate that many are likely preventable. Timely reporting of injury rates, types, and causes should allow commanders and Army leaders to focus their attention on prevention strategies and policies during ongoing operations.