Which of the following is a reason for the increased use of IEDs?

The increased use of IEDs can be significantly attributed to the increased anonymity for attackers. This anonymity allows perpetrators to carry out attacks without revealing their identity or being easily tracked, making IEDs an appealing option for insurgents and terrorists. The nature of IEDs enables these individuals to place them in public areas or against military targets without needing to be physically present at the moment of detonation, which enhances their operational security.

Unlike traditional weapons systems, IEDs can be built and deployed by individuals or small groups who may not have extensive military training, thus circumventing the need for sophisticated skills and resources. The ability to blend in with civilian populations while preparing and deploying these devices further contributes to the anonymity that attackers seek. With this operational advantage, IEDs become a preferred method of engagement for those wishing to exploit vulnerabilities in security infrastructure and to inflict harm while minimizing their risks of capture or identification.