In the years since the Cold War ended, the U.S. military has become heavily dependent upon satellite communications to maintain its global connectivity. Without such links, it would be difficult for the military to operate in a coordinated fashion or exchange information critical to situational awareness. Defense experts have repeatedly warned that the availability of space-based communications could be compromised in future conflicts by the fact that 80-90% of all military traffic is transmitted on vulnerable commercial satcom channels. However, there is a related problem that far fewer military observers have noticed: only about 1% of defense communications today are...