Name a common feature of modern military IEDs.

The correct answer highlights a crucial aspect of modern military improvised explosive devices (IEDs). Remote detonation capability is a common feature because it allows the operator to detonate the device from a safe distance, significantly enhancing their safety and operational effectiveness. This capability can be achieved through various means, including remote controls, mobile phones, or command wires, enabling greater flexibility in how and when the device is triggered.

This feature is particularly important in combat situations where the element of surprise is key, and it allows for strategic deployment without direct physical proximity to the explosive device. Increased safety for the operator, combined with the ability to choose the optimal moment for detonation, makes remote detonation a preferred method among those constructing IEDs in modern warfare.

In contrast, alternatives like manual activation only might limit the tactical advantages and safety, as they require the operator to be physically close to the device when it detonates, increasing risk. High visibility and increased weight are generally not desired characteristics for effective IEDs, as they would make the devices easier to detect and reduce concealment, thereby negating their tactical effectiveness.