First, if a nation gets the satellite technology, it will use it (if military) for its own intelligence, like a spy satellite or a navsat or a comsat.
Weapons in space are inefficient!
First, it means the only satellite it has would be very quickly destroyed.
Second, in space, you have to manoeuvre towards another satellite and that would not go unnoticed by more advanced countries.
Third, it's a lot more practical to launch a missile straight to the adversary (would be a lot faster) than first putting it in orbit than changing its trajectory or eventually returning it to Earth.
All those things were figured out during the cold war.

Raoul