What describes a command initiated IED?

A command initiated improvised explosive device (IED) is defined by the fact that it is deliberately triggered by the bomber at a specific moment. This type of IED gives the bomber control over the detonation, allowing them to target individuals or groups when they believe the impact will be most effective. The strategic timing may be based on various factors, such as the movement of a target or to maximize casualties.

The other options describe different types of detonation methods that do not involve active control by the bomber. For instance, an IED that is triggered by an accidental action would be unintentional and lacks the precision associated with command initiation. Similarly, an IED activated at a predetermined time does not provide the same level of control as one initiated by the bomber themselves, as it operates on a timer regardless of situational changes. Lastly, IEDs that are set off by environmental factors typically respond to physical changes, such as pressure or heat, which is also not reflective of the tactical choice made by the bomber in a command initiated scenario.