Multiple choice general knowledge What is the full form of DEERS….. Defense Enrollment Eligibility Regional System Data Enrollment Eligibility Reporting System Defense Enrollment Eligibility Reporting System Defense Employees Eligibility Reporting System Reveal answer Fill a bubble to check yourself C Correct answer Explanation DEERS stands for Defense Enrollment Eligibility Reporting System. It is a database used by the US Department of Defense to track service members, retirees, and their beneficiaries' eligibility for healthcare and other benefits.