3-24. An unexpected change in conditions often requires commanders to direct an abrupt transition between phases. In such cases, the overall composition of a military force remains unchanged despite sudden changes in mission, task organization, and rules of engagement. Typically, task organization evolves to meet changing conditions; however, transition planning also accounts for changes in the mission. Commanders attuned to sudden changes can better adapt their forces to dynamic conditions. They continuously assess the situation and task-organize and cycle their forces to retain the initiative. They strive to achieve changes in emphasis without incurring an operational pause.