How long do you have to be at a duty station before you can call branch to PCS?

2 years typically, 1 for certain assignments, lots of threads already discussing this

Speak with your S1, while there are Army policies, local commanders have a vote. If you are trying to get straight back to Germany, good luck. Overseas in general are at a premium.

Depending on if you re-enlisted to go to Bragg, 3 years, if you didn’t, 2 years