What are the three doctrinal types of operations in military strategy?

The three doctrinal types of operations in military strategy are shaping, decisive, and sustaining operations.

Shaping operations are designed to set the conditions for success in the later stages of conflict. They involve actions that create favorable circumstances for friendly forces and can include intelligence activities, logistical preparations, and force positioning. By preceding decisive operations, shaping operations help to undermine the enemy's capabilities or morale.

Decisive operations are those that directly lead to the achievement of the mission's objectives. These operations often involve significant combat engagement against the enemy and are critical in determining the outcome of the military campaign. The goal of decisive operations is to deliver a decisive defeat to the enemy, thereby creating conditions conducive to achieving overall mission success.

Sustaining operations support the aforementioned operations by ensuring that forces have the resources, logistics, and maintenance required for their continued effectiveness. This category encompasses supply chain management, personnel support, and infrastructure maintenance, which are essential for sustaining both shaping and decisive operations over prolonged engagements.

The other options, while containing elements relevant to military operations, do not encompass the doctrinal framework of military strategy accurately. Therefore, the answer highlighting shaping, decisive, and sustaining operations reflects the comprehensive approach required in military planning and execution.