The Defense Department’s satellite communications chief envisions a data “transport layer” that involves commercial, military and international partners and extends beyond the Space Development Agency’s work in low Earth orbit. Though the SDA’s efforts tied to its transport layer have been described as the “backbone” of the military’s Joint All-Domain Command and Control, Mike Dean noted this week that a broader network leveraging communications links across orbits would be needed to enable “sharing across the whole spectrum.” “I don’t think...