Which of the following functionalities does not belong to the JLTV?

The functionality that does not belong to the Joint Light Tactical Vehicle (JLTV) is direct air support. The JLTV is primarily designed for ground operations, with an emphasis on versatility, mobility, and protection for personnel and equipment. Its capabilities include fire support, reconnaissance, and troop transport, all of which are aligned with its intended roles within ground forces.

Direct air support, however, involves aerial assets providing close support to ground troops, which goes beyond the role of a tactical ground vehicle. Instead, that function is typically carried out by aircraft or other dedicated air support assets that operate within the air domain to provide targeting assistance, firepower, and surveillance from the air. Thus, while the JLTV supports ground missions, it does not engage in direct air operations.