Imagine a natural disaster scenario, such as an earthquake, that inflicts widespread damage to buildings and structures, critical utilities and infrastructure, and threatens human safety. Having the ability to navigate the rubble and enter highly unstable areas could prove invaluable to saving lives or detecting additional hazards among the wreckage. …

During the first half of the twentieth century, armies grew enamored with the concept of “super guns”—huge artillery systems able to bombard cities up dozens of miles behind the frontline. During World War I, Imperial Germany deployed the infamous Paris Gun, which could launch huge 211-millimeter shells to bombard the …

All modern forces depend on unimpeded access to, and use of, the EM spectrum in conducting military operations. Therefore, there is a requirement to gain and maintain an advantage in the electromagnetic spectrum by countering adversary’s systems and protecting one’s own systems. Thus the EM spectrum can no longer be …