After you complete Basic Combat Training, you're ready for the next step

ADVANCED INDIVIDUAL TRAINING

Preparing You For Your Army Job

After you complete Basic Combat Training, you're ready for the next step. Advanced Individual Training (AIT) is where you will learn the skills to perform your Army job.
At one of many diverse AIT schools, you'll receive hands-on training and field instruction to make you an expert in that specific career field. You'll also gain the discipline and work ethic to help you no matter what path you take in life.

 http://www.goarmy.com/soldier-life/becoming-a-soldier/advanced-individual-training.html