PS - No, you won't give birth in a Military hospital in Germany, they are few and far between. You will have baby at a German hospital where you will find military personnel working there - You will be privately insured by the army and the hospitals out here are wonderful because they are not public funded like we have in the UK.
-Most of the hospitals that Military personnel are referred to have a lot of English speaking staff outside the military staff, including liason officers etc so there is no need to worry about not understanding what is going on. The Army work closely with the hospitals they have insurance with to make sure all Military personnel and their dependants get to see English speaking care providers where possible.