No, space-based.. Like Brilliant Pebbles. It's why Space Force is a big deal.

Oh, so we think putting arms in space is a good idea now? there is a treaty against that, because if we accept that, anyone who is able to get objects into space can do some of the following:

- Park nukes in space -> no launch, you just drop them on your enemy - Tungsten rods -> put a couple of tungsten rods into a launch satellite and have them rain down from space on your enemy

Not sure that this is such a good idea.

At this point it's just a concept. There's nothing being actively developed.

Putting nukes or tungsten rods in space wouldn't accomplish much. You can't just "drop" an object from orbit. Instead you need to conduct a burn to de-orbit and head toward the target. So it doesn't save much time compared to hitting the target directly with a missile launched from Earth. Launch satellites themselves would be vulnerable to anti-satellite defenses so they would be shot down early in any major conflict. And nuclear weapons can't be left unattended indefinitely; they require maintenance at least every few years in order to operate reliably.