Originally Posted by
Continuingappch
If you live abroad you get to pay both US taxes and taxes where you live. Uncle Sam allows at least some credit depending on the details. Cologne base is limited to a few years, then you have to rotate out for a period of time.
That largely comes down to the requirements of the "host" country and (more specifically) what type of status you maintain there. On the plus side at least you're not in 'murica so it can be a price worth paying in many situations.