What organization is created when a specific need arises and no existing unit can be assigned personnel?

The correct answer is the provisional organization. This type of organization is established to address a specific need or requirement that cannot be met by existing units or personnel structures. Provisional organizations are often created in response to unforeseen circumstances or unique missions that demand a flexible and adaptable approach to resource allocation and manpower.

These organizations are typically formed with the expectation that they may not be permanent. Instead, they are designed to operate for a limited time until the specific need is resolved or until a more permanent solution can be put in place. The provisional nature allows for the quick mobilization of personnel and resources tailored to the immediate challenges at hand, ensuring efficient and effective response during critical situations.

In contrast, permanent organizations are established for long-term functions and stability within a structure, temporary organizations are usually created for short, defined projects but do not have the specific need aspect, and field organizations typically refer to units deployed in operational environments rather than those formed to address immediate organizational gaps.