Consists of four ID force members on one team or any combination of internal and external SRT.

• A. SRT
• B. Area Supervisor
• C. Squad
• D. Fire Team

Answer: (D)

The key idea here is the size and role of the smallest independent combat unit. A Fire Team is the four-person fighting element designed to operate as a cohesive unit, whether on its own or attached to a larger formation. This setup gives enough firepower and control for direct action while remaining highly maneuverable, which is precisely what a four-member team needs when working with internal or external SRT assets.

In a typical Fire Team, the four roles work together to cover each other: one member leads, another provides rifle fire, one delivers automatic fire for suppressive capability, and the last handles grenades and medium-range support. This combination lets the team adapt to threats and obstacles quickly, without requiring the larger footprint of a Squad, which usually contains more personnel.

Area Supervisor refers to a leadership role rather than a four-person combat element, and SRT by itself is a broader team concept that doesn’t define a four-person unit. Therefore, the four-person Fire Team best fits the description provided.