This report describes the results of analyses investigating the relationships between pre-service educational background and performance in the military. Military enlistment and Job Corps data files were used to describe the characteristics of males entering the military, and to examine their performance in the military. Comparisons are made among General Educational Development (GED) holders, high school graduates, and non-high school graduates entering the military on background variables such as age. Performance in the military is also examined. Data from Job Corps trainee data files were used in conjunction with military enlistment data files to prepare descriptions of male Job Corps entrants to the military, and to compare those entrants to non-entrants and to enlistees in general. The performance of Job Corps entrants to the military is also described, and comparisons made with male enlistee performance in general.