Which of the following is NOT a target signature category?

In military contexts, target signature categories are used to identify and classify different types of targets an operator may encounter. The categories typically include entities like personnel, vehicles, and obstacles/mines, which are relevant for targeting and operational strategies.

Personnel represents individual soldiers or groups of soldiers that can be detected and engaged. Obstacles/mines are typically physical impediments or explosive devices that can affect maneuverability. Vehicles are a broad category encompassing various military and non-military transport options that may pose threats or strategic opportunities in a combat situation.

Containers, while they can hold a variety of cargo, including equipment or materials, do not fit into the standard target signature categories commonly defined for military operations. Instead, they are often part of logistical operations and may be relevant in a different context, such as supply chain management or trafficking concerns, rather than direct combat engagements. This is why containers are identified as not fitting within the established target signature categories.