I took two six week immersion classes midway through my tour in Germany (didn't have the time my first two years, although I picked some up while living off base).
That was followed with a 3 month TDY at a German anti-aircraft training base. After our first meeting, the base commander told me "you can ditch the interpreter."
It was just about the best summer of my life. We were the only Americans for 200 miles, and the resort town near the base was a target rich environment. I made so many friends there, I went back several times, even though it was 400 miles from my regular duty station.
I don't get it...you're in a refugee camp for five years, and you don't learn anything?
But the way we do it here milks more money out of taxpayers and puts the money into gov’t employees.