In two articles, Ars Technica reports that the US military will investigate whether materials can be moved between two destinations on Earth using space rockets. Dr. Greg Spangers, a US Air Force researcher and head of the Rocket Cargo Program, says in a comment about this:
“This idea has been around since the dawn of spaceflight. It’s always been an interesting idea. We’ve looked at it every 10 years, but it’s never really made sense. And the reason we’re doing it now is because it looks like maybe the technology has caught up to a good idea.”
The US Air Force has applied for $47.9 million to assess the possibilities of being able to transport military materials with space missiles in the future. If everything were scrapped, that would mean the US military would be able to move materials between two different destinations in about an hour, much faster than any of the transportation in use today.
As early as 2017, SpaceX presented plans to be able to transport passengers between two destinations on Earth using the Starship in less than an hour. If the US military decides to go ahead and investigate the possibility of above-ground transportation with space rockets, it is not entirely impossible for SpaceX to be involved in any way in these plans.