Which domain is NOT included in the five domains of strategy?

The correct choice identifies "Financial" as the domain that is not included in the five domains of strategy. The five recognized domains of strategy typically encompass areas that are vital for military operations and strategic planning, which are Maritime, Air, Land, Cyber, and Space. Each of these domains relates directly to the environment in which military forces may operate and the unique challenges they present.

The financial aspect, while crucial for the overall management and resourcing of military operations, does not represent a separate operational domain in the context of military strategy. It supports and enables the strategy but is not categorized in the same way as the physical domains where military engagement and considerations take place. Understanding this distinction helps clarify the operational focus of military strategy within the recognized five domains and why financial is not among them.