If you are serious about joining the military, then you must take the Armed Services Vocational Aptitude Battery (ASVAB).
The ASVAB is a timed multi-aptitude test, which is given at over 14,000 schools and Military Entrance Processing Stations (MEPS) nationwide and is developed and maintained by the Department of Defense.
Please visit their website for more information.
The test is usually given in December. Please see Mrs. Walker in the Media Center to sign up.