This constitutes the main critique of the idea. Besides pacifist arguments against militarization of space as a commonwealth for all of Earth. 21st Space Wing

This constitutes the main critique of the idea. Besides pacifist arguments against militarization of space as a commonwealth for all of Earth. 21st Space Wing out of Peterson AFB in Colorado Springs already bears the brunt of the duty. With a dedicated total staff of approx 20K air men and women. DoD recommendations remain to be seen for a sixth branch. But I believe the design is for a much bigger and permanent institution. Space based communications comprise GPS systems, navigation, timing, broadcast and a whole lot else. Russia and China already have tested ground to orbit based missile capacity. And space systems are inherently fragile: only a few satellites need to be taken offline for there to be wide disruptions in service. The big question is can it be done with the efficiency we are now witnessing in private sector New Space enterprises. Or will we see the same bureaucracy that is plaguing the F-35 rollout. Personally I feel if it can be done "ahead of schedule, and under budget". It could provide security for all of humankind's peaceful expansion into the stars.