An interesting piece from April that looks at how SDA is leveraging the decreasing cost of satellite production and deployment to reduce the potential incentives and impact of enemy action against space assets:

By deploying hundreds of satellites in SDA’s new Proliferated Warfighter Space Architecture, the Space Force is recalculating the economics of space warfare. SDA’s initial batch of PWSA satellites, dubbed Tranche 0, will number just 28. But close on its heals will be Tranche 1 with more than 150 satellites and Tranche 2 with more than 250. Tranche 1 launches are set to begin in the fall of 2024, and Tranche 2 will follow in 2026.

“We’ll have hundreds and hundreds of these satellites up there,” Tournear said. “It will cost more to shoot down a single satellite than it will cost to build that single satellite. We just completely changed that value equation.”

Replacing a space architecture built of massively expensive bespoke satellites with one assembled from numerous relatively cheap satellites, SDA and Tournear aim to convince adversaries that the math is no longer in their favor, rendering essentially useless China’s and Russia’s direct-ascent weapons. In theory, at least, such strikes effectively become as great a threat to the perpetrator’s satellites because of the debris that they would generate as to the U.S. satellites they might seek to shoot down.