What is the worldwide deployable system capable of supporting all types of military operations called?

The correct response focuses on TACS, which stands for Theater Air Control System. TACS is a robust, worldwide deployable system designed to support various military operations, including air, ground, and naval activities. This system enables the coordination and integration of air power in support of joint and combined forces, providing command and control capabilities essential for operational success.

TACS integrates various command and control elements to optimize the use of airspace and ensure effective communication among different military units. It is pivotal for real-time decision-making and adapting to the dynamic needs of battlefield operations.

Other options such as Xtreme Reach, C4I, and Multi-Modal Transport System may refer to specific technologies or systems used within military structures, but they do not encapsulate the broad capability of supporting all types of military operations like TACS does. Each of these alternatives serves particular roles, such as communication or transport, but TACS uniquely stands out as a comprehensive system handling diverse military operations across various terrains and situations.