The interchange that drives world economics in the past now intersects with and will rest on the electromagnetic spectrum’s (EMS) structure that includes cyberspace. Historically, the world’s oceans played this crucial role in great power competition, but today that key geography now sits within the EMS’s exponential exchange in services between nations for maximal productivity output in free and open markets. The U.S. military must help sustain these crucial lines of communication to channel the spirit and capacity of their nation’s people into the new activities that war calls for and efficiently employ them against a threat. Sea lines of communication were of foremost importance in this regard until now, when the EMS, tapped by cyberspace, connects the most amount of people and their productivity to win the next conflict. Cyberspace has consumed the sea.