[robocat]

The US military wants to have option to deploy anywhere in the world, so they also want to have comms everywhere.

The starlink network surely has special features to support US military needs (resiliance, encryption, blocking enemy countries from access, robustness against countermeasures, yaddayadda).

[Zigurd]

The military has interoperating and compatible comms everywhere. People have solved many problems before Elon invented a thing.