The article is using "voluntary" in a very questionable fashion.
> Germany's parliament, the Bundestag, has voted to introduce voluntary military service...
> The form will be mandatory for men and voluntary for women.
> The government says military service will be voluntary for as long as possible, but from July 2027, all 18-year-old men will have to take a medical exam to assess their fitness for possible military service.
> a form of compulsory military service could be considered by the Bundestag.
Well, that escalated quickly. There's nothing here that could be really described as "voluntary".
replies(5):