Such was the acute shortage of military doctors, dentists and chaplains that a stint of compulsory service was reintroduced for these professional groups.

You might as well insist on compulsory service in tyre-balancing or telephone-selling as in training for battle.

For the compulsory service, competitors prepare three beverages utilizing whole bean coffee provided to them by the competition.

During the first round, the twelve contestants exhibit two coffee services a compulsory service and an open service.

In the first heat competitors are required to complete two coffee services, which are a compulsory service and an open service.