Final answer:
Crisis action planning is a rapid, time-sensitive process crucial for responding to imminent crises by developing OPLANs and OPORDs to deploy and sustain forces and resources.
Step-by-step explanation:
The time-sensitive development of joint OPLANs and OPORDs for the deployment, employment, and sustainment of assigned and allocated forces and resources in response to an imminent crisis is referred to as Crisis action planning. This rapid planning process differs from deliberate planning, which is more reflective and long-term. Crisis action planning is critical in situations where quick and decisive action is required, and it often involves adjustments to plans based on the unfolding events. This planning is done quickly and efficiently to address the urgent situation at hand.