A recent posting of a satellite image from the U.S. National Training Center raised a lot of eyebrows. The image reveals a heat map of a cluster of electromagnetic signals emitted from a battalion-sized unit participating in a large-scale training event. These signals were captured as part of the exercise. This picture showed what many of us already know: we have an electromagnetic emission discipline problem in our tactical units. This article in SIGNAL Magazine makes a call for a grand strategy to dominate the electro-magnetic spectrum, bake-in requirements to minimize signals in new platforms, mask in depth and develop continuous passive obfuscation tactics.