You may find that you'll have trouble getting an international language course approved by the VA. They would generally require that the course provide a "professional degree" that would be useful in a future career. Not saying it's impossible, I just know it usually has to be a legitimate degree program.
Computer Science would be easily approved, but a language course could be difficult at a foreign university.
Have you thought about studying German now? I know Rosetta Stone offers a pretty good discount to AD and vets.