3-20. Unanticipated changes or an improved understanding of an operational environment may result in commanders reframing a problem and adapting an operation. Unforeseen success resulting in collapse of enemy opposition illustrates one unanticipated change. Another example is a deteriorating situation during peace operations requiring a transition to the defense or offense to reestablish stability. Commanders need to adjust task organizations to support the requirements of transitions. When transitioning, subordinate commanders must clearly understand their higher echelon commander’s intent, concept of operations, and desired end state. This includes how much risk to accept, and where to accept it.