The 3-2-1 defense system is an excellent strategy to put the attacking players under pressure in their initial actions. This often results in quick turnovers and fast breaks. However, a good basic fitness as well as a thorough 1-on-1 defense training are prerequisite for this. To make your youth training comprehensive, include practicing the 3-2-1 defense system as a mandatory element. As in each volume of the handball-uebungen.de series, this book has its focus on practical exercises which can be integrated in each handball training unit. Get inspired, learn how to develop a 3-2-1 defense system, and don't forget to be creative on your own! A short theoretical introduction to the general training schedule will help you to integrate training units into your own annual schedule.