The toughening phase prt schedule is used in bct and osut (r/w/b phases). Try it now and let this template inspire you to complete your task quickly. The stt requires dedicated time on the training schedule and must be planned, resourced, rehearsed, and executed with no external. These training strategies, with associated collective tasks, enable commanders to identify necessary resources associated with current and future training and readiness events. In this article we will explore a quick and easy way to built a unit training calendar.