That is something different from processed and packaged, which you talked about in your first comment.
Of course not, most ingredients however will be EU produced/processed and then processed into the final drinks in Germany.
But aside from pure agricultural product, almost no product would be "product of Germany" if using no imports would be the requirement to use that lable.
Local police was involved in the exercise. So the soldier likely mistook the arriving police force as part of the exercise, when they were not.