NEMESIS shifts from traditional electronic warfare tactics, in which multiple electronic warfare systems execute individual electronic attacks on multiple enemy sensors to achieve largely individual or localized effects, to a very diverse set of networked electronic warfare systems cooperatively making electronic attacks on huge portions of an enemy's sensor network. That network may stretch across large distances and multiple warfighting domains. In doing so, it achieves a cohesive set of far more unified, powerful, and convincing effects.
The Navy’s 2015 Program Guide also mentions that the Navy conducted a war game in 2015 to test the NEMESIS system. Another budget document, the 2017 RDT&E Project Justification document for the Navy's "Space and Electronic Warfare (SEW) Architecture/Engineering Support" program, states that this war game took place in late February 2015:
a system of satellites than have incredibly powerful laser projection units. Something advanced, sure. Something we haven’t seen commercially yet. But something that is certainly within the bounds of existing physics.<<<Read More>>>...